[SPARC64]: Fix bugs in SYSV IPC handling in 64-bit processes.

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Thanks to Tom Callaway for the excellent bug report and
test case.

sys_ipc() has several problems, most to due with semaphore
call handling:

1) 'err' return should be a 'long'
2) "union semun" is passed in a register on 64-bit compared
   to 32-bit which provides it on the stack and therefore
   by reference
3) Second and third arguments to SEMCTL are swapped compared
   to 32-bit.

Signed-off-by: David S. Miller <davem@davemloft.net>

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This commit is contained in:

David S. Miller 2007-10-09 20:56:31 -07:00

parent fa7744dbb6

commit 7379b42b60

1 changed files with 4 additions and 11 deletions

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arch/sparc64/kernel/sys_sparc.c

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