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| author | Greg Kroah-Hartman <gregkh@suse.de> | 2008-04-14 23:17:29 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2008-04-25 06:16:33 +0200 |
| commit | c2010a3b9e5e98efb7f70d4d73ce4f15508ffa7b (patch) | |
| tree | 06914ffe07b6d06e8443b753485565e8b4cc93b2 /scripts/checkpatch.pl | |
| parent | USB: enable USB-PERSIST by default (diff) | |
| download | linux-c2010a3b9e5e98efb7f70d4d73ce4f15508ffa7b.tar.xz linux-c2010a3b9e5e98efb7f70d4d73ce4f15508ffa7b.zip | |
checkpatch: usb_free_urb() can take NULL
usb_free_urb() can take a NULL, so let's check and warn about that.
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'scripts/checkpatch.pl')
| -rwxr-xr-x | scripts/checkpatch.pl | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl index 58a94947d655..64ec4b8a51b5 100755 --- a/scripts/checkpatch.pl +++ b/scripts/checkpatch.pl @@ -1889,6 +1889,13 @@ sub process { WARN("kfree(NULL) is safe this check is probabally not required\n" . $hereprev); } } +# check for needless usb_free_urb() checks + if ($prevline =~ /\bif\s*\(([^\)]*)\)/) { + my $expr = $1; + if ($line =~ /\busb_free_urb\(\Q$expr\E\);/) { + WARN("usb_free_urb(NULL) is safe this check is probabally not required\n" . $hereprev); + } + } # warn about #ifdefs in C files # if ($line =~ /^.#\s*if(|n)def/ && ($realfile =~ /\.c$/)) { |