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| author | Anton Vorontsov <cbouatmailru@gmail.com> | 2010-04-26 21:56:19 +0400 |
|---|---|---|
| committer | Anton Vorontsov <cbouatmailru@gmail.com> | 2010-04-26 21:56:19 +0400 |
| commit | 8ef1bb539203629f77a61976e4f25415e1083bff (patch) | |
| tree | 4fee25aca0928f112716fb02d27b1b355d0843b4 /drivers/char/mem.c | |
| parent | a3bcbbee83f55cbaec9b2ad748e7300c7feb2192 (diff) | |
| parent | b91ce4d14a21fc04d165be30319541e0f9204f15 (diff) | |
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6
Diffstat (limited to 'drivers/char/mem.c')
| -rw-r--r-- | drivers/char/mem.c | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/drivers/char/mem.c b/drivers/char/mem.c index 1f3215ac085..f54dab8acdc 100644 --- a/drivers/char/mem.c +++ b/drivers/char/mem.c @@ -225,6 +225,7 @@ int __weak phys_mem_access_prot_allowed(struct file *file, * outside of main memory. * */ +#ifdef pgprot_noncached static int uncached_access(struct file *file, unsigned long addr) { #if defined(CONFIG_IA64) @@ -251,6 +252,7 @@ static int uncached_access(struct file *file, unsigned long addr) return addr >= __pa(high_memory); #endif } +#endif static pgprot_t phys_mem_access_prot(struct file *file, unsigned long pfn, unsigned long size, pgprot_t vma_prot) @@ -710,11 +712,6 @@ static loff_t memory_lseek(struct file *file, loff_t offset, int orig) switch (orig) { case SEEK_CUR: offset += file->f_pos; - if ((unsigned long long)offset < - (unsigned long long)file->f_pos) { - ret = -EOVERFLOW; - break; - } case SEEK_SET: /* to avoid userland mistaking f_pos=-9 as -EBADF=-9 */ if ((unsigned long long)offset >= ~0xFFFULL) { @@ -908,6 +905,9 @@ static int __init chr_dev_init(void) printk("unable to get major %d for memory devs\n", MEM_MAJOR); mem_class = class_create(THIS_MODULE, "mem"); + if (IS_ERR(mem_class)) + return PTR_ERR(mem_class); + mem_class->devnode = mem_devnode; for (minor = 1; minor < ARRAY_SIZE(devlist); minor++) { if (!devlist[minor].name) |