Staging: bcm: Fix double free of 'pReadData' in IOCTL_BCM_NVM_WRITE.

This patch fixes a memory error in ioctl,
IOCTL_BCM_NVM_WRITE. While copying data to
user space, if an error occurs, pReadData
is freed. Then, at the end of the ioctl,
pReadData was being freed again.

Signed-off-by: Kevin McKinney <klmckinney1@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

diff --git a/drivers/staging/bcm/Bcmchar.c b/drivers/staging/bcm/Bcmchar.c
index 72a699c127040371f134b45db3eba0ed48c38906..ad1cc5598dca971d38a7c08fb4e080a3a6e2b3ee 100644 (file)
--- a/drivers/staging/bcm/Bcmchar.c
+++ b/drivers/staging/bcm/Bcmchar.c
@@ -1336,7 +1336,7 @@ cntrlEnd:
 
                        if (copy_to_user(stNVMReadWrite.pBuffer, pReadData, stNVMReadWrite.uiNumBytes)) {
                                kfree(pReadData);
-                               Status = -EFAULT;
+                               return -EFAULT;
                        }
                } else {
                        down(&Adapter->NVMRdmWrmLock);