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| author | Catalin Marinas <catalin.marinas@arm.com> | 2013-05-15 16:49:35 +0000 |
|---|---|---|
| committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2013-05-15 21:42:24 +0200 |
| commit | 7a26b53070f0099dfcfc9d499458de861c5c4859 (patch) | |
| tree | 89bd2af1edb86fb2ad99662460ec42f98cbaa26f | |
| parent | 0ab5bb64937d76c660c29813d8de0f4b47bf7550 (diff) | |
| download | linux-7a26b53070f0099dfcfc9d499458de861c5c4859.tar.gz linux-7a26b53070f0099dfcfc9d499458de861c5c4859.tar.bz2 linux-7a26b53070f0099dfcfc9d499458de861c5c4859.zip | |
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>
| -rw-r--r-- | drivers/acpi/scan.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c index fe158fd4f1df..c1bc608339a6 100644 --- a/drivers/acpi/scan.c +++ b/drivers/acpi/scan.c @@ -1785,7 +1785,7 @@ static void acpi_scan_init_hotplug(acpi_handle handle, int type) acpi_set_pnp_ids(handle, &pnp, type); if (!pnp.type.hardware_id) - return; + goto out; /* * This relies on the fact that acpi_install_notify_handler() will not @@ -1800,6 +1800,7 @@ static void acpi_scan_init_hotplug(acpi_handle handle, int type) } } +out: acpi_free_pnp_ids(&pnp); } |