Messages in this thread | | | Date | Tue, 11 Jan 2022 10:58:10 +0100 | Subject | Re: [PATCH] media: vidtv: Check for null return of vzalloc | From | Hans Verkuil <> |
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On 31/12/2021 08:50, Jiasheng Jiang wrote: > As the possible failure of the vzalloc(), e->encoder_buf might be NULL. > Therefore, it should be better to check it like the kzalloc() in order > to guarantee the success of the initialization. > > Fixes: f90cf6079bf6 ("media: vidtv: add a bridge driver") > Signed-off-by: Jiasheng Jiang <jiasheng@iscas.ac.cn> > --- > drivers/media/test-drivers/vidtv/vidtv_s302m.c | 5 +++++ > 1 file changed, 5 insertions(+) > > diff --git a/drivers/media/test-drivers/vidtv/vidtv_s302m.c b/drivers/media/test-drivers/vidtv/vidtv_s302m.c > index d79b65854627..d7907f1ae530 100644 > --- a/drivers/media/test-drivers/vidtv/vidtv_s302m.c > +++ b/drivers/media/test-drivers/vidtv/vidtv_s302m.c > @@ -455,6 +455,11 @@ struct vidtv_encoder > e->name = kstrdup(args.name, GFP_KERNEL); > > e->encoder_buf = vzalloc(VIDTV_S302M_BUF_SZ); > + if (!e->encoder_buf) {
This doesn't free e->name!
Actually, the same issue is also present later in this function:
ctx = kzalloc(priv_sz, GFP_KERNEL); if (!ctx) { kfree(e); return NULL; }
Regards,
Hans
> + kfree(e); > + return NULL; > + } > + > e->encoder_buf_sz = VIDTV_S302M_BUF_SZ; > e->encoder_buf_offset = 0; >
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