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| author | Dmitry Torokhov <dtor@insightbb.com> | 2006-08-02 04:33:34 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2006-09-27 20:58:49 +0200 |
| commit | b94badbb47cb50f4fca8440efdaa8ebd32604fe4 (patch) | |
| tree | ab30562cdd55a5587bb596f23f443b3d8910a0e1 | |
| parent | USB: ark3116: Formatting cleanups (diff) | |
| download | linux-b94badbb47cb50f4fca8440efdaa8ebd32604fe4.tar.xz linux-b94badbb47cb50f4fca8440efdaa8ebd32604fe4.zip | |
USB: Make usb_buffer_free() NULL-safe
kfree() handles NULL arguments which is handy in error handling paths as one
does need to insert bunch of ifs. How about making usb_buffer_free() do the
same?
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| -rw-r--r-- | drivers/usb/core/usb.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/usb/core/usb.c b/drivers/usb/core/usb.c index 184c24660a4c..ab766e0fe4ef 100644 --- a/drivers/usb/core/usb.c +++ b/drivers/usb/core/usb.c @@ -761,7 +761,9 @@ void usb_buffer_free ( ) { if (!dev || !dev->bus || !dev->bus->op || !dev->bus->op->buffer_free) - return; + return; + if (!addr) + return; dev->bus->op->buffer_free (dev->bus, size, addr, dma); } |