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author | 2022-02-02 23:58:21 +0300 | |
---|---|---|
committer | 2022-02-19 11:18:35 +0900 | |
commit | ec87cf3782f7b05ae15e061d36c763c35488f292 (patch) | |
tree | fd9579e56dd60e6a241f1fd55be48d7a4fc45c1e /drivers/ata | |
parent | ata: libata: ata_{sff|std}_prereset() always return 0 (diff) | |
download | linux-ec87cf3782f7b05ae15e061d36c763c35488f292.tar.gz linux-ec87cf3782f7b05ae15e061d36c763c35488f292.tar.bz2 linux-ec87cf3782f7b05ae15e061d36c763c35488f292.zip |
ata: libata: make ata_host_suspend() *void*
ata_host_suspend() always returns 0, so the result checks in many drivers
look pointless. Let's make this function return *void* instead of *int*.
Found by Linux Verification Center (linuxtesting.org) with the SVACE static
analysis tool.
Signed-off-by: Sergey Shtylyov <s.shtylyov@omp.ru>
Acked-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
Diffstat (limited to 'drivers/ata')
-rw-r--r-- | drivers/ata/ahci.c | 3 | ||||
-rw-r--r-- | drivers/ata/ata_piix.c | 5 | ||||
-rw-r--r-- | drivers/ata/libahci_platform.c | 3 | ||||
-rw-r--r-- | drivers/ata/libata-core.c | 8 | ||||
-rw-r--r-- | drivers/ata/pata_arasan_cf.c | 3 | ||||
-rw-r--r-- | drivers/ata/pata_cs5520.c | 5 | ||||
-rw-r--r-- | drivers/ata/pata_imx.c | 15 | ||||
-rw-r--r-- | drivers/ata/pata_macio.c | 6 | ||||
-rw-r--r-- | drivers/ata/pata_mpc52xx.c | 3 | ||||
-rw-r--r-- | drivers/ata/pata_samsung_cf.c | 3 | ||||
-rw-r--r-- | drivers/ata/pata_triflex.c | 5 | ||||
-rw-r--r-- | drivers/ata/sata_fsl.c | 4 | ||||
-rw-r--r-- | drivers/ata/sata_highbank.c | 3 | ||||
-rw-r--r-- | drivers/ata/sata_mv.c | 6 | ||||
-rw-r--r-- | drivers/ata/sata_rcar.c | 18 |
15 files changed, 38 insertions, 52 deletions
diff --git a/drivers/ata/ahci.c b/drivers/ata/ahci.c index edca4e8fd44e..51045fd05243 100644 --- a/drivers/ata/ahci.c +++ b/drivers/ata/ahci.c @@ -891,7 +891,8 @@ static int ahci_pci_device_suspend(struct device *dev) } ahci_pci_disable_interrupts(host); - return ata_host_suspend(host, PMSG_SUSPEND); + ata_host_suspend(host, PMSG_SUSPEND); + return 0; } static int ahci_pci_device_resume(struct device *dev) diff --git a/drivers/ata/ata_piix.c b/drivers/ata/ata_piix.c index 27b0d903f91f..ade5e894563b 100644 --- a/drivers/ata/ata_piix.c +++ b/drivers/ata/ata_piix.c @@ -993,11 +993,8 @@ static int piix_pci_device_suspend(struct pci_dev *pdev, pm_message_t mesg) { struct ata_host *host = pci_get_drvdata(pdev); unsigned long flags; - int rc = 0; - rc = ata_host_suspend(host, mesg); - if (rc) - return rc; + ata_host_suspend(host, mesg); /* Some braindamaged ACPI suspend implementations expect the * controller to be awake on entry; otherwise, it burns cpu diff --git a/drivers/ata/libahci_platform.c b/drivers/ata/libahci_platform.c index 18296443ccba..65227ef6b846 100644 --- a/drivers/ata/libahci_platform.c +++ b/drivers/ata/libahci_platform.c @@ -733,7 +733,8 @@ int ahci_platform_suspend_host(struct device *dev) if (hpriv->flags & AHCI_HFLAG_SUSPEND_PHYS) ahci_platform_disable_phys(hpriv); - return ata_host_suspend(host, PMSG_SUSPEND); + ata_host_suspend(host, PMSG_SUSPEND); + return 0; } EXPORT_SYMBOL_GPL(ahci_platform_suspend_host); diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c index 3ceda1fa243d..0ddb49f2ece1 100644 --- a/drivers/ata/libata-core.c +++ b/drivers/ata/libata-core.c @@ -5170,10 +5170,9 @@ EXPORT_SYMBOL_GPL(ata_sas_port_resume); * * Suspend @host. Actual operation is performed by port suspend. */ -int ata_host_suspend(struct ata_host *host, pm_message_t mesg) +void ata_host_suspend(struct ata_host *host, pm_message_t mesg) { host->dev->power.power_state = mesg; - return 0; } EXPORT_SYMBOL_GPL(ata_host_suspend); @@ -6090,11 +6089,8 @@ EXPORT_SYMBOL_GPL(ata_pci_device_do_resume); int ata_pci_device_suspend(struct pci_dev *pdev, pm_message_t mesg) { struct ata_host *host = pci_get_drvdata(pdev); - int rc = 0; - rc = ata_host_suspend(host, mesg); - if (rc) - return rc; + ata_host_suspend(host, mesg); ata_pci_device_do_suspend(pdev, mesg); diff --git a/drivers/ata/pata_arasan_cf.c b/drivers/ata/pata_arasan_cf.c index 24c3d5e1fca3..e89617ed9175 100644 --- a/drivers/ata/pata_arasan_cf.c +++ b/drivers/ata/pata_arasan_cf.c @@ -937,7 +937,8 @@ static int arasan_cf_suspend(struct device *dev) dmaengine_terminate_all(acdev->dma_chan); cf_exit(acdev); - return ata_host_suspend(host, PMSG_SUSPEND); + ata_host_suspend(host, PMSG_SUSPEND); + return 0; } static int arasan_cf_resume(struct device *dev) diff --git a/drivers/ata/pata_cs5520.c b/drivers/ata/pata_cs5520.c index 24ce8665b1f9..f4289a532f87 100644 --- a/drivers/ata/pata_cs5520.c +++ b/drivers/ata/pata_cs5520.c @@ -259,11 +259,8 @@ static int cs5520_reinit_one(struct pci_dev *pdev) static int cs5520_pci_device_suspend(struct pci_dev *pdev, pm_message_t mesg) { struct ata_host *host = pci_get_drvdata(pdev); - int rc = 0; - rc = ata_host_suspend(host, mesg); - if (rc) - return rc; + ata_host_suspend(host, mesg); pci_save_state(pdev); return 0; diff --git a/drivers/ata/pata_imx.c b/drivers/ata/pata_imx.c index 2e538726802b..150939275b1b 100644 --- a/drivers/ata/pata_imx.c +++ b/drivers/ata/pata_imx.c @@ -223,17 +223,14 @@ static int pata_imx_suspend(struct device *dev) { struct ata_host *host = dev_get_drvdata(dev); struct pata_imx_priv *priv = host->private_data; - int ret; - ret = ata_host_suspend(host, PMSG_SUSPEND); - if (!ret) { - __raw_writel(0, priv->host_regs + PATA_IMX_ATA_INT_EN); - priv->ata_ctl = - __raw_readl(priv->host_regs + PATA_IMX_ATA_CONTROL); - clk_disable_unprepare(priv->clk); - } + ata_host_suspend(host, PMSG_SUSPEND); - return ret; + __raw_writel(0, priv->host_regs + PATA_IMX_ATA_INT_EN); + priv->ata_ctl = __raw_readl(priv->host_regs + PATA_IMX_ATA_CONTROL); + clk_disable_unprepare(priv->clk); + + return 0; } static int pata_imx_resume(struct device *dev) diff --git a/drivers/ata/pata_macio.c b/drivers/ata/pata_macio.c index 16e8aa184a75..3c3509f18cdd 100644 --- a/drivers/ata/pata_macio.c +++ b/drivers/ata/pata_macio.c @@ -853,12 +853,8 @@ static int pata_macio_slave_config(struct scsi_device *sdev) #ifdef CONFIG_PM_SLEEP static int pata_macio_do_suspend(struct pata_macio_priv *priv, pm_message_t mesg) { - int rc; - /* First, core libata suspend to do most of the work */ - rc = ata_host_suspend(priv->host, mesg); - if (rc) - return rc; + ata_host_suspend(priv->host, mesg); /* Restore to default timings */ pata_macio_default_timings(priv); diff --git a/drivers/ata/pata_mpc52xx.c b/drivers/ata/pata_mpc52xx.c index f1d352d5f128..c1b138d24b05 100644 --- a/drivers/ata/pata_mpc52xx.c +++ b/drivers/ata/pata_mpc52xx.c @@ -824,7 +824,8 @@ mpc52xx_ata_suspend(struct platform_device *op, pm_message_t state) { struct ata_host *host = platform_get_drvdata(op); - return ata_host_suspend(host, state); + ata_host_suspend(host, state); + return 0; } static int diff --git a/drivers/ata/pata_samsung_cf.c b/drivers/ata/pata_samsung_cf.c index 3da0e8e30286..377cd6bd87ac 100644 --- a/drivers/ata/pata_samsung_cf.c +++ b/drivers/ata/pata_samsung_cf.c @@ -608,7 +608,8 @@ static int pata_s3c_suspend(struct device *dev) { struct ata_host *host = dev_get_drvdata(dev); - return ata_host_suspend(host, PMSG_SUSPEND); + ata_host_suspend(host, PMSG_SUSPEND); + return 0; } static int pata_s3c_resume(struct device *dev) diff --git a/drivers/ata/pata_triflex.c b/drivers/ata/pata_triflex.c index 8a033598e7e1..782162d2f3f8 100644 --- a/drivers/ata/pata_triflex.c +++ b/drivers/ata/pata_triflex.c @@ -198,11 +198,8 @@ static const struct pci_device_id triflex[] = { static int triflex_ata_pci_device_suspend(struct pci_dev *pdev, pm_message_t mesg) { struct ata_host *host = pci_get_drvdata(pdev); - int rc = 0; - rc = ata_host_suspend(host, mesg); - if (rc) - return rc; + ata_host_suspend(host, mesg); /* * We must not disable or powerdown the device. diff --git a/drivers/ata/sata_fsl.c b/drivers/ata/sata_fsl.c index da0152116d9f..cfe93c420488 100644 --- a/drivers/ata/sata_fsl.c +++ b/drivers/ata/sata_fsl.c @@ -1546,7 +1546,9 @@ static int sata_fsl_remove(struct platform_device *ofdev) static int sata_fsl_suspend(struct platform_device *op, pm_message_t state) { struct ata_host *host = platform_get_drvdata(op); - return ata_host_suspend(host, state); + + ata_host_suspend(host, state); + return 0; } static int sata_fsl_resume(struct platform_device *op) diff --git a/drivers/ata/sata_highbank.c b/drivers/ata/sata_highbank.c index b29d3f1d64b0..077bce76c445 100644 --- a/drivers/ata/sata_highbank.c +++ b/drivers/ata/sata_highbank.c @@ -587,7 +587,8 @@ static int ahci_highbank_suspend(struct device *dev) writel(ctl, mmio + HOST_CTL); readl(mmio + HOST_CTL); /* flush */ - return ata_host_suspend(host, PMSG_SUSPEND); + ata_host_suspend(host, PMSG_SUSPEND); + return 0; } static int ahci_highbank_resume(struct device *dev) diff --git a/drivers/ata/sata_mv.c b/drivers/ata/sata_mv.c index 53446b997740..3b2a0d228306 100644 --- a/drivers/ata/sata_mv.c +++ b/drivers/ata/sata_mv.c @@ -4235,10 +4235,10 @@ static int mv_platform_remove(struct platform_device *pdev) static int mv_platform_suspend(struct platform_device *pdev, pm_message_t state) { struct ata_host *host = platform_get_drvdata(pdev); + if (host) - return ata_host_suspend(host, state); - else - return 0; + ata_host_suspend(host, state); + return 0; } static int mv_platform_resume(struct platform_device *pdev) diff --git a/drivers/ata/sata_rcar.c b/drivers/ata/sata_rcar.c index 3d96b6faa3f0..be8bfefed663 100644 --- a/drivers/ata/sata_rcar.c +++ b/drivers/ata/sata_rcar.c @@ -945,19 +945,17 @@ static int sata_rcar_suspend(struct device *dev) struct ata_host *host = dev_get_drvdata(dev); struct sata_rcar_priv *priv = host->private_data; void __iomem *base = priv->base; - int ret; - ret = ata_host_suspend(host, PMSG_SUSPEND); - if (!ret) { - /* disable interrupts */ - iowrite32(0, base + ATAPI_INT_ENABLE_REG); - /* mask */ - iowrite32(priv->sataint_mask, base + SATAINTMASK_REG); + ata_host_suspend(host, PMSG_SUSPEND); - pm_runtime_put(dev); - } + /* disable interrupts */ + iowrite32(0, base + ATAPI_INT_ENABLE_REG); + /* mask */ + iowrite32(priv->sataint_mask, base + SATAINTMASK_REG); - return ret; + pm_runtime_put(dev); + + return 0; } static int sata_rcar_resume(struct device *dev) |