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| author | Oliver Neukum <oliver@neukum.org> | 2009-07-02 16:41:39 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2009-07-12 15:16:37 -0700 |
| commit | ca157c4a51fa6209f28c316f4a63d594adb79518 (patch) | |
| tree | 68308852497bbf4154c2726a371531855db46842 /drivers/usb/class | |
| parent | 45e83889eb291714d3a4727e98e2488074affbf8 (diff) | |
| download | linux-ca157c4a51fa6209f28c316f4a63d594adb79518.tar.gz linux-ca157c4a51fa6209f28c316f4a63d594adb79518.tar.bz2 linux-ca157c4a51fa6209f28c316f4a63d594adb79518.zip | |
USB: fix memory leak in usbtmc
If an error is returned kfree must also be called.
Signed-off-by: Oliver Neukum <oliver@neukum.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/usb/class')
| -rw-r--r-- | drivers/usb/class/usbtmc.c | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/drivers/usb/class/usbtmc.c b/drivers/usb/class/usbtmc.c index 3703789d0d2a..b09a527f7341 100644 --- a/drivers/usb/class/usbtmc.c +++ b/drivers/usb/class/usbtmc.c @@ -751,7 +751,7 @@ static int get_capabilities(struct usbtmc_device_data *data) { struct device *dev = &data->usb_dev->dev; char *buffer; - int rv; + int rv = 0; buffer = kmalloc(0x18, GFP_KERNEL); if (!buffer) @@ -763,7 +763,7 @@ static int get_capabilities(struct usbtmc_device_data *data) 0, 0, buffer, 0x18, USBTMC_TIMEOUT); if (rv < 0) { dev_err(dev, "usb_control_msg returned %d\n", rv); - return rv; + goto err_out; } dev_dbg(dev, "GET_CAPABILITIES returned %x\n", buffer[0]); @@ -773,7 +773,8 @@ static int get_capabilities(struct usbtmc_device_data *data) dev_dbg(dev, "USB488 device capabilities are %x\n", buffer[15]); if (buffer[0] != USBTMC_STATUS_SUCCESS) { dev_err(dev, "GET_CAPABILITIES returned %x\n", buffer[0]); - return -EPERM; + rv = -EPERM; + goto err_out; } data->capabilities.interface_capabilities = buffer[4]; @@ -781,8 +782,9 @@ static int get_capabilities(struct usbtmc_device_data *data) data->capabilities.usb488_interface_capabilities = buffer[14]; data->capabilities.usb488_device_capabilities = buffer[15]; +err_out: kfree(buffer); - return 0; + return rv; } #define capability_attribute(name) \ |