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| author | Jesper Juhl <jj@chaosbits.net> | 2012-04-11 23:23:41 +0200 |
|---|---|---|
| committer | Marc Kleine-Budde <mkl@pengutronix.de> | 2012-04-16 21:34:50 +0200 |
| commit | a49bcabedc18319f673319d5e71b5751e3978179 (patch) | |
| tree | beefbfa8bee452e5876bff2fef0b49b397c1b332 | |
| parent | net/ethernet: ks8851_mll fix rx frame buffer overflow (diff) | |
| download | linux-a49bcabedc18319f673319d5e71b5751e3978179.tar.xz linux-a49bcabedc18319f673319d5e71b5751e3978179.zip | |
can: usb: PCAN-USB Pro: fix mem leaks in pcan_usb_pro_init() on error paths
If either call to pcan_usb_pro_send_req() in
drivers/net/can/usb/peak_usb/pcan_usb_pro.c::pcan_usb_pro_init()
fails, we'll leak the memory we allocated to 'usb_if' with kzalloc()
when the 'usb_if' variable goes out of scope without having been
assigned to anything as we 'return err;'.
Fix this by adding appropriate kfree(usb_if) calls to the error paths.
Signed-off-by: Jesper Juhl <jj@chaosbits.net>
Acked-by: Stephane Grosjean <s.grosjean@peak-system.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
| -rw-r--r-- | drivers/net/can/usb/peak_usb/pcan_usb_pro.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/net/can/usb/peak_usb/pcan_usb_pro.c b/drivers/net/can/usb/peak_usb/pcan_usb_pro.c index 5234586dff15..629c4ba5d49d 100644 --- a/drivers/net/can/usb/peak_usb/pcan_usb_pro.c +++ b/drivers/net/can/usb/peak_usb/pcan_usb_pro.c @@ -875,6 +875,7 @@ static int pcan_usb_pro_init(struct peak_usb_device *dev) PCAN_USBPRO_INFO_FW, &fi, sizeof(fi)); if (err) { + kfree(usb_if); dev_err(dev->netdev->dev.parent, "unable to read %s firmware info (err %d)\n", pcan_usb_pro.name, err); @@ -885,6 +886,7 @@ static int pcan_usb_pro_init(struct peak_usb_device *dev) PCAN_USBPRO_INFO_BL, &bi, sizeof(bi)); if (err) { + kfree(usb_if); dev_err(dev->netdev->dev.parent, "unable to read %s bootloader info (err %d)\n", pcan_usb_pro.name, err); |