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authorJulia Lawall <julia@diku.dk>2009-12-17 15:27:09 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2009-12-17 15:45:30 -0800
commit0f05058531330854ff383237e1547044c67e5740 (patch)
tree874207002e578f24a44977bae456b147f6f8d80e
parent312ea07bf067d41b339473e696f9199245d762f3 (diff)
drivers/video/via/viafbdev.c: correct code taking the size of a pointer
sizeof(viafb_gamma_table) is just the size of the pointer. This is changed to the size used when calling kmalloc to initialize the pointer. A simplified version of the semantic patch that finds this problem is as follows: (http://coccinelle.lip6.fr/) // <smpl> @@ expression *x; expression f; type T; @@ *f(...,(T)x,...) // </smpl> Signed-off-by: Julia Lawall <julia@diku.dk> Acked-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de> Cc: Joseph Chan <JosephChan@via.com.tw> Cc: Scott Fang <ScottFang@viatech.com.cn> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
-rw-r--r--drivers/video/via/viafbdev.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/video/via/viafbdev.c b/drivers/video/via/viafbdev.c
index 10d8c4b..d8df17a 100644
--- a/drivers/video/via/viafbdev.c
+++ b/drivers/video/via/viafbdev.c
@@ -680,7 +680,7 @@ static int viafb_ioctl(struct fb_info *info, u_int cmd, u_long arg)
if (!viafb_gamma_table)
return -ENOMEM;
if (copy_from_user(viafb_gamma_table, argp,
- sizeof(viafb_gamma_table))) {
+ 256 * sizeof(u32))) {
kfree(viafb_gamma_table);
return -EFAULT;
}
@@ -694,7 +694,7 @@ static int viafb_ioctl(struct fb_info *info, u_int cmd, u_long arg)
return -ENOMEM;
viafb_get_gamma_table(viafb_gamma_table);
if (copy_to_user(argp, viafb_gamma_table,
- sizeof(viafb_gamma_table))) {
+ 256 * sizeof(u32))) {
kfree(viafb_gamma_table);
return -EFAULT;
}