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authorJeff Layton <jlayton@redhat.com>2010-11-08 07:28:32 -0500
committerSteve French <sfrench@us.ibm.com>2010-11-08 18:56:36 +0000
commit618763958b2291a09057dbfa553da6ded93dcfad (patch)
tree985c2e8eba7e0b63f0c9ac314fa1bf6c311aee73 /Documentation
parent151f52f09c5728ecfdd0c289da1a4b30bb416f2c (diff)
cifs: make cifs_ioctl handle NULL filp->private_data correctly
Commit 13cfb7334e made cifs_ioctl use the tlink attached to the cifsFileInfo for a filp. This ignores the case of an open directory however, which in CIFS can have a NULL private_data until a readdir is done on it. This patch re-adds the NULL pointer checks that were removed in commit 50ae28f01 and moves the setting of tcon and "caps" variables lower. Long term, a better fix would be to establish a f_op->open routine for directories that populates that field at open time, but that requires some other changes to how readdir calls are handled. Reported-by: Kjell Rune Skaaraas <kjella79@yahoo.no> Reviewed-and-Tested-by: Suresh Jayaraman <sjayaraman@suse.de> Signed-off-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Steve French <sfrench@us.ibm.com>
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