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authorWu Fengguang <fengguang.wu@intel.com>2010-01-15 17:01:32 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2010-01-16 12:15:39 -0800
commit8ff410daa009c4b44be445ded5b0cec00abc0426 (patch)
treec8cd0a20b7116e7f150397d50b25fc626bec86dd /ipc
parentba168fc37dea145deeb8fa9e7e71c748d2e00d74 (diff)
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sysdev: fix prototype for memory_sysdev_class show/store functions
The function prototype mismatches in call stack: [<ffffffff81494268>] print_block_size+0x58/0x60 [<ffffffff81487e3f>] sysdev_class_show+0x1f/0x30 [<ffffffff811d629b>] sysfs_read_file+0xcb/0x1f0 [<ffffffff81176328>] vfs_read+0xc8/0x180 Due to prototype mismatch, print_block_size() will sprintf() into *attribute instead of *buf, hence user space will read the initial zeros from *buf: $ hexdump /sys/devices/system/memory/block_size_bytes 0000000 0000 0000 0000 0000 0000008 After patch: cat /sys/devices/system/memory/block_size_bytes 0x8000000 This complements commits c29af9636 and 4a0b2b4dbe. Signed-off-by: Wu Fengguang <fengguang.wu@intel.com> Cc: Andi Kleen <andi@firstfloor.org> Cc: Greg Kroah-Hartman <gregkh@suse.de> Cc: "Zheng, Shaohui" <shaohui.zheng@intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'ipc')
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