[PATCH] ACPICA: Don't leak next_walk_state inacpi_ds_call_control_method()

[Jesper Juhl]

If acpi_ds_create_walk_state() succeeds, but the call to
ACPI_ALLOCATE_ZEROED() fails, then we'll return from the function
without properly freeing 'next_walk_state'.

Signed-off-by: Jesper Juhl <jj@xxxxxxxxxxxxx>
---
 drivers/acpi/acpica/dsmethod.c |    3 ++-
 1 files changed, 2 insertions(+), 1 deletions(-)

diff --git a/drivers/acpi/acpica/dsmethod.c b/drivers/acpi/acpica/dsmethod.c
index aa9a5d4..ade59a3 100644
--- a/drivers/acpi/acpica/dsmethod.c
+++ b/drivers/acpi/acpica/dsmethod.c
@@ -378,7 +378,8 @@ acpi_ds_call_control_method(struct acpi_thread_state *thread,
 	 */
 	info = ACPI_ALLOCATE_ZEROED(sizeof(struct acpi_evaluate_info));
 	if (!info) {
-		return_ACPI_STATUS(AE_NO_MEMORY);
+		status = AE_NO_MEMORY;
+		goto cleanup;
 	}
 
 	info->parameters = &this_walk_state->operands[0];
-- 
1.7.1


-- 
Jesper Juhl <jj@xxxxxxxxxxxxx>       http://www.chaosbits.net/
Don't top-post http://www.catb.org/jargon/html/T/top-post.html
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