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| author | Rasmus Villemoes <mail@rasmusvillemoes.dk> | 2013-06-05 17:09:39 +0000 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2013-06-06 12:54:08 -0700 |
| commit | 71811f3271cd986e223be44830e5961056561ac3 (patch) | |
| tree | 3056f805a67870d36c19a361cf805b44d33aae3e | |
| parent | 29ddae2a40883640941932f73eb3d15535c3f4a2 (diff) | |
| download | lwn-71811f3271cd986e223be44830e5961056561ac3.tar.gz lwn-71811f3271cd986e223be44830e5961056561ac3.zip | |
drivers: char: mem: use IS_ERR_VALUE() in memory_lseek()
Use IS_ERR_VALUE() instead of comparing the new offset to a hard-coded
value of -MAX_ERRNO (which is also off-by-one due to the use of ~
instead of -).
Signed-off-by: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | drivers/char/mem.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/char/mem.c b/drivers/char/mem.c index 1ccbe9482faa..2ca6d7844ad9 100644 --- a/drivers/char/mem.c +++ b/drivers/char/mem.c @@ -745,7 +745,7 @@ static loff_t memory_lseek(struct file *file, loff_t offset, int orig) offset += file->f_pos; case SEEK_SET: /* to avoid userland mistaking f_pos=-9 as -EBADF=-9 */ - if ((unsigned long long)offset >= ~0xFFFULL) { + if (IS_ERR_VALUE((unsigned long long)offset)) { ret = -EOVERFLOW; break; } |