From: Catalin Marinas <catalin.marinas@arm.com>
Date: Wed, 15 May 2013 16:49:35 +0000 (+0000)
Subject: ACPI / scan: Fix memory leak on acpi_scan_init_hotplug() error path
X-Git-Tag: v3.10-rc2~15^2^2
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=7a26b53070f0099dfcfc9d499458de861c5c4859;p=pandora-kernel.git

ACPI / scan: Fix memory leak on acpi_scan_init_hotplug() error path

Following commit 6b772e8f9 (ACPI: Update PNPID match handling for
notify), the acpi_scan_init_hotplug() calls acpi_set_pnp_ids() which
allocates acpi_hardware_id and copies a few strings (kstrdup). If the
devices does not have hardware_id set, the function exits without
freeing the previously allocated ids (and kmemleak complains). This
patch calls simply changes 'return' on error to a 'goto out' which
calls acpi_free_pnp_ids().

Reported-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Reviewed-by: Toshi Kani <toshi.kani@hp.com>
Tested-by: Toshi Kani <toshi.kani@hp.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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