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fbmem: fix con2fbmap limit check

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Fix limit check in FBIOPUT_CON2FBMAP ioctl.

Signed-off-by: Peter Samuelson <[email protected]>
Cc: Geert Uytterhoeven <[email protected]>
Cc: "Antonino A. Daplas" <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
This commit is contained in:
Peter Samuelson 2008-04-28 02:15:03 -07:00 • committed by Linus Torvalds
commit 57a7a6db0e
1 changed files with 1 additions and 1 deletions
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2
drivers/video/fbmem.c
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@ -1057,7 +1057,7 @@ fb_ioctl(struct inode *inode, struct file *file, unsigned int cmd,
case FBIOPUT_CON2FBMAP:
if (copy_from_user(&con2fb, argp, sizeof(con2fb)))
return - EFAULT;
if (con2fb.console < 0 || con2fb.console > MAX_NR_CONSOLES)
if (con2fb.console < 1 || con2fb.console > MAX_NR_CONSOLES)
return -EINVAL;
if (con2fb.framebuffer < 0 || con2fb.framebuffer >= FB_MAX)
return -EINVAL;