From: Julia Lawall <julia@xxxxxxx> Check that the result of kmalloc is not NULL before passing it to other functions. The semantic match that finds this problem is as follows: (http://www.emn.fr/x-info/coccinelle/) // <smpl> @@ expression *x; identifier f; constant char *C; @@ x = \(kmalloc\|kcalloc\|kzalloc\)(...); ... when != x == NULL when != x != NULL when != (x || ...) ( kfree(x) | f(...,C,...,x,...) | *f(...,x,...) | *x->f ) // </smpl> Signed-off-by: Julia Lawall <julia@xxxxxxx> --- drivers/video/au1100fb.c | 4 ++++ 1 files changed, 4 insertions(+), 0 deletions(-) diff --git a/drivers/video/au1100fb.c b/drivers/video/au1100fb.c index 378f277..1766846 100644 --- a/drivers/video/au1100fb.c +++ b/drivers/video/au1100fb.c @@ -716,6 +716,10 @@ int au1100fb_setup(char *options) /* Mode option (only option that start with digit) */ else if (isdigit(this_opt[0])) { mode = kmalloc(strlen(this_opt) + 1, GFP_KERNEL); + if (!mode) { + print_err("memory allocation failed"); + return -ENOMEM; + } strncpy(mode, this_opt, strlen(this_opt) + 1); } /* Unsupported option */ -- To unsubscribe from this list: send the line "unsubscribe kernel-janitors" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
