kfree has taken the null check in account. hence it is unnecessary to add the
null check before kfree the object. Just remove it.
Reported-by: Julia Lawall <julia.lawall@lip6.fr>
Signed-off-by: zhong jiang <zhongjiang@huawei.com>
Link: https://lore.kernel.org/r/1567591408-24268-1-git-send-email-zhongjiang@huawei.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
These two error paths need to unlock before we can return.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Link: https://lore.kernel.org/r/20190904095908.GA7007@mwanda
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Fixes checkpatch.pl warnings:
CHECK: Comparison to NULL could be written "expr"
CHECK: Comparison to NULL could be written "!expr"
Signed-off-by: Valentin Vidic <vvidic@valentin-vidic.from.hr>
Link: https://lore.kernel.org/r/20190903205659.18856-1-vvidic@valentin-vidic.from.hr
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Replace with bool where it makes sense. Also drop unused local
variable lossy in fat_find_dir_entry.
Reported-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Valentin Vidic <vvidic@valentin-vidic.from.hr>
Link: https://lore.kernel.org/r/20190903185537.25099-1-vvidic@valentin-vidic.from.hr
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Fixes checkpatch.pl warnings:
CHECK: Unbalanced braces around else statement
CHECK: braces {} should be used on all arms of this statement
Signed-off-by: Valentin Vidic <vvidic@valentin-vidic.from.hr>
Link: https://lore.kernel.org/r/20190903164732.14194-1-vvidic@valentin-vidic.from.hr
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
A call to FAT_getblk is missing a null return check which can
lead to a null pointer dereference. Fix this by adding a null
check to match all the other FAT_getblk return sanity checks.
Addresses-Coverity: ("Dereference null return")
Fixes: c48c9f7ff3 ("staging: exfat: add exfat filesystem code to staging")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Link: https://lore.kernel.org/r/20190830175050.12706-1-colin.king@canonical.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The return statement is incorrect, the error exit should be by
assigning ret with the error code and exiting via label out.
Thanks to Valdis Klētnieks for correcting my original fix.
Addresses-Coverity: ("Structurally dead code")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Link: https://lore.kernel.org/r/20190902094052.28029-1-colin.king@canonical.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Currently there are error return paths in ffsReadFile that
exit via lable err_out that return and uninitialized error
return in variable ret. Fix this by initializing ret to zero.
Addresses-Coverity: ("Uninitialized scalar variable")
Fixes: c48c9f7ff3 ("staging: exfat: add exfat filesystem code to staging")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Cc: Valdis Kletnieks <valdis.kletnieks@vt.edu>,
Reviewed-by: Nathan Chancellor <natechancellor@gmail.com>
Link: https://lore.kernel.org/r/20190830184644.15590-1-colin.king@canonical.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Fixes checkpatch.pl warnings:
CHECK: Please don't use multiple blank lines
CHECK: Blank lines aren't necessary after an open brace '{'
CHECK: Please use a blank line after function/struct/union/enum
declarations
Signed-off-by: Valentin Vidic <vvidic@valentin-vidic.from.hr>
Link: https://lore.kernel.org/r/20190902190329.18685-1-vvidic@valentin-vidic.from.hr
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This should fix a build error in some configurations when CONFIG_BLOCK
is not selected. Also properly set the dependancy for no FAT support at
the same time.
Reported-by: Randy Dunlap <rdunlap@infradead.org>
Cc: Valdis Kletnieks <valdis.kletnieks@vt.edu>
Link: https://lore.kernel.org/r/20190902174631.GB31445@kroah.com
Acked-by: Randy Dunlap <rdunlap@infradead.org> # build-tested
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Concerns have been raised about the exfat driver accidentally mounting
fat/vfat file systems. Add an extra configure option to help prevent that.
Signed-off-by: Valdis Kletnieks <valdis.kletnieks@vt.edu>
Link: https://lore.kernel.org/r/245727.1567183359@turing-police
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The exfat code needs a lot of work to get it into "real" shape for
the fs/ part of the kernel, so put it into drivers/staging/ for now so
that it can be worked on by everyone in the community.
The full specification of the filesystem can be found at:
https://docs.microsoft.com/en-us/windows/win32/fileio/exfat-specification
Signed-off-by: Valdis Kletnieks <valdis.kletnieks@vt.edu>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Link: https://lore.kernel.org/r/20190828160817.6250-1-gregkh@linuxfoundation.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
