tree 4b32fb032a341706cde7f365485837dee1c78c34
parent 9fe8eccad4425fd024516fac2ebc0a39610441a0
author Richard Purdie <richard.purdie@linuxfoundation.org> 1442619093 -0700
committer Jiri Kosina <jkosina@suse.cz> 1443010115 +0200

HID: core: Avoid uninitialized buffer access

hid_connect adds various strings to the buffer but they're all
conditional. You can find circumstances where nothing would be written
to it but the kernel will still print the supposedly empty buffer with
printk. This leads to corruption on the console/in the logs.

Ensure buf is initialized to an empty string.

Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
[dvhart: Initialize string to "" rather than assign buf[0] = NULL;]
Cc: Jiri Kosina <jikos@kernel.org>
Cc: linux-input@vger.kernel.org
Cc: stable@vger.kernel.org
Signed-off-by: Darren Hart <dvhart@linux.intel.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>