| Message ID | 20221226070236.4450-1-chuanjian@nfschina.com |
|---|---|
| State | New |
| Headers | show |
| Series | [v2] drivers/media/v4l2-core/v4l2-h264 : add detection of null pointers | expand |
diff --git a/drivers/media/v4l2-core/v4l2-h264.c b/drivers/media/v4l2-core/v4l2-h264.c index 72bd64f65198..0e7b35ae3e94 100644 --- a/drivers/media/v4l2-core/v4l2-h264.c +++ b/drivers/media/v4l2-core/v4l2-h264.c @@ -343,6 +343,8 @@ static const char *format_ref_list_b(const struct v4l2_h264_reflist_builder *bui int n = 0, i; *out_str = kmalloc(tmp_str_size, GFP_KERNEL); + if (*out_str == NULL) + return NULL; n += snprintf(*out_str + n, tmp_str_size - n, "|"); @@ -356,7 +358,6 @@ static const char *format_ref_list_b(const struct v4l2_h264_reflist_builder *bui longterm ? 'l' : 's', ref_type_to_char(reflist[i].fields)); } - return *out_str; }
When the pointer variable is judged to be null, null is returned directly. Signed-off-by: Dong Chuanjian <chuanjian@nfschina.com> --- v2: Directly return when pointer allocation fails.