https://github.com/torvalds/linux
Revision 325fda71d0badc1073dc59f12a948f24ff05796a authored by KAMEZAWA Hiroyuki on 02 February 2010, 21:44:05 UTC, committed by Linus Torvalds on 03 February 2010, 02:11:22 UTC
Otherwise vmalloc_to_page() will BUG(). This also makes the kmem read/write implementation aligned with mem(4): "References to nonexistent locations cause errors to be returned." Here we return -ENXIO (inspired by Hugh) if no bytes have been transfered to/from user space, otherwise return partial read/write results. Signed-off-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> Signed-off-by: Wu Fengguang <fengguang.wu@intel.com> Cc: Greg Kroah-Hartman <gregkh@suse.de> Cc: Hugh Dickins <hugh.dickins@tiscali.co.uk> Cc: <stable@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Tip revision: 325fda71d0badc1073dc59f12a948f24ff05796a authored by KAMEZAWA Hiroyuki on 02 February 2010, 21:44:05 UTC
devmem: check vmalloc address on kmem read/write
devmem: check vmalloc address on kmem read/write
Tip revision: 325fda7
| File | Mode | Size |
|---|---|---|
| acpi | ||
| asm-generic | ||
| crypto | ||
| drm | ||
| keys | ||
| linux | ||
| math-emu | ||
| media | ||
| mtd | ||
| net | ||
| pcmcia | ||
| rdma | ||
| rxrpc | ||
| scsi | ||
| sound | ||
| trace | ||
| video | ||
| xen | ||
| Kbuild | -rw-r--r-- | 253 bytes |
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