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| author |  Dan Carpenter <dan.carpenter@linaro.org>
| 2023-10-27 15:04:56 +0300 |
|---|---|---|
| committer |  Helge Deller <deller@gmx.de>
| 2023-11-07 14:42:34 +0100 |
| commit | e08c30efda21ef4c0ec084a3a9581c220b442ba9 (patch) | |
| tree | 8e6262d1946bcb0ec2ca5b40ab09e5e43faa8445 | |
| parent | fbdev: viafb: use new array-copying-wrapper (diff) | |
| download | linux-e08c30efda21ef4c0ec084a3a9581c220b442ba9.tar.gz linux-e08c30efda21ef4c0ec084a3a9581c220b442ba9.tar.bz2 linux-e08c30efda21ef4c0ec084a3a9581c220b442ba9.zip | |
fbdev: imsttfb: fix double free in probe()
The init_imstt() function calls framebuffer_release() on error and then
the probe() function calls it again. It should only be done in probe.
Fixes: 518ecb6a209f ("fbdev: imsttfb: Fix error path of imsttfb_probe()")
Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org>
Signed-off-by: Helge Deller <deller@gmx.de>
| -rw-r--r-- | drivers/video/fbdev/imsttfb.c | 6 |
1 files changed, 1 insertions, 5 deletions
diff --git a/drivers/video/fbdev/imsttfb.c b/drivers/video/fbdev/imsttfb.c index e7e03e920729..acb943f85700 100644 --- a/drivers/video/fbdev/imsttfb.c +++ b/drivers/video/fbdev/imsttfb.c @@ -1421,7 +1421,6 @@ static int init_imstt(struct fb_info *info) if ((info->var.xres * info->var.yres) * (info->var.bits_per_pixel >> 3) > info->fix.smem_len || !(compute_imstt_regvals(par, info->var.xres, info->var.yres))) { printk("imsttfb: %ux%ux%u not supported\n", info->var.xres, info->var.yres, info->var.bits_per_pixel); - framebuffer_release(info); return -ENODEV; } @@ -1453,14 +1452,11 @@ static int init_imstt(struct fb_info *info) FBINFO_HWACCEL_FILLRECT | FBINFO_HWACCEL_YPAN; - if (fb_alloc_cmap(&info->cmap, 0, 0)) { - framebuffer_release(info); + if (fb_alloc_cmap(&info->cmap, 0, 0)) return -ENODEV; - } if (register_framebuffer(info) < 0) { fb_dealloc_cmap(&info->cmap); - framebuffer_release(info); return -ENODEV; } |