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authorIngo Molnar <mingo@elte.hu>2008-07-29 00:07:55 +0200
committerIngo Molnar <mingo@elte.hu>2008-07-29 00:07:55 +0200
commitcb28a1bbdb4790378e7366d6c9ee1d2340b84f92 (patch)
tree316436f77dac75335fd2c3ef5f109e71606c50d3 /drivers/acpi/namespace/nsnames.c
parentb6d4f7e3ef25beb8c658c97867d98883e69dc544 (diff)
parentf934fb19ef34730263e6afc01e8ec27a8a71470f (diff)
Merge branch 'linus' into core/generic-dma-coherent
Conflicts: arch/x86/Kconfig Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'drivers/acpi/namespace/nsnames.c')
-rw-r--r--drivers/acpi/namespace/nsnames.c8
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/acpi/namespace/nsnames.c b/drivers/acpi/namespace/nsnames.c
index cffef1bcbdbc..549db42f16cf 100644
--- a/drivers/acpi/namespace/nsnames.c
+++ b/drivers/acpi/namespace/nsnames.c
@@ -137,6 +137,10 @@ char *acpi_ns_get_external_pathname(struct acpi_namespace_node *node)
/* Calculate required buffer size based on depth below root */
size = acpi_ns_get_pathname_length(node);
+ if (!size) {
+ ACPI_ERROR((AE_INFO, "Invalid node failure"));
+ return_PTR(NULL);
+ }
/* Allocate a buffer to be returned to caller */
@@ -229,6 +233,10 @@ acpi_ns_handle_to_pathname(acpi_handle target_handle,
/* Determine size required for the caller buffer */
required_size = acpi_ns_get_pathname_length(node);
+ if (!required_size) {
+ ACPI_ERROR((AE_INFO, "Invalid node failure"));
+ return_ACPI_STATUS(AE_ERROR);
+ }
/* Validate/Allocate/Clear caller buffer */