Messages in this thread Patch in this message |  | | From | Nicolas Iooss <> | Subject | [PATCH] [media] am437x-vpfe: always assign bpp variable | Date | Tue, 27 Dec 2016 19:02:36 +0100 |
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In vpfe_s_fmt(), when the sensor format and the requested format were the same, bpp was assigned to vpfe->bpp without being initialized first.
Grab the bpp value that is currently used by using __vpfe_get_format() instead of its wrapper, vpfe_try_fmt().
This use of uninitialized variable has been found by compiling the kernel with clang.
Fixes: 417d2e507edc ("[media] media: platform: add VPFE capture driver support for AM437X") Cc: stable@vger.kernel.org Signed-off-by: Nicolas Iooss <nicolas.iooss_linux@m4x.org> --- drivers/media/platform/am437x/am437x-vpfe.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/media/platform/am437x/am437x-vpfe.c b/drivers/media/platform/am437x/am437x-vpfe.c index b33b9e35e60e..05489a401c5c 100644 --- a/drivers/media/platform/am437x/am437x-vpfe.c +++ b/drivers/media/platform/am437x/am437x-vpfe.c @@ -1576,7 +1576,7 @@ static int vpfe_s_fmt(struct file *file, void *priv, return -EBUSY; } - ret = vpfe_try_fmt(file, priv, &format); + ret = __vpfe_get_format(vpfe, &format, &bpp); if (ret) return ret; -- 2.11.0
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