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staging/lustre/libcfs: fix illegal page access of tracefiled() 

After failure happens and put_pages_back() returns the pages,
tracefiled() should not go on itering on the page list.
Otherwise, some pages might be accessed illegally.

Signed-off-by: Li Xi <lixi@ddn.com>
Signed-off-by: Jian Yu <jian.yu@intel.com>
Reviewed-on: http://review.whamcloud.com/11454
Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-5126
Reviewed-by: Emoly Liu <emoly.liu@intel.com>
Reviewed-by: Niu Yawei <yawei.niu@intel.com>
Signed-off-by: Oleg Drokin <oleg.drokin@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Li Xi 2015-02-01 21:52:03 -05:00 committed by Greg Kroah-Hartman
parent 13534f8f31
commit 2661e6c456
1 changed files with 1 additions and 0 deletions
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drivers/staging/lustre/lustre/libcfs/tracefile.c
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@ -1037,6 +1037,7 @@ static int tracefiled(void *arg)
tage->used, rc); tage->used, rc);
put_pages_back(&pc); put_pages_back(&pc);
__LASSERT(list_empty(&pc.pc_pages)); __LASSERT(list_empty(&pc.pc_pages));
break;
} }
} }
MMSPACE_CLOSE; MMSPACE_CLOSE;