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| author | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2013-06-28 08:00:25 +0200 |
|---|---|---|
| committer | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2013-06-28 08:00:25 +0200 |
| commit | 31881d74b6dd1a6c530cff61248def4f2da38bee (patch) | |
| tree | be62420cf39192074e13b25553d172b9d5e58a33 /drivers/acpi/acpica/rscalc.c | |
| parent | Input: wacom_i2c - implement hovering capability (diff) | |
| parent | Input: MT - Specify that ABS_MT_SLOT must have a minimum of 0 (diff) | |
| download | linux-31881d74b6dd1a6c530cff61248def4f2da38bee.tar.xz linux-31881d74b6dd1a6c530cff61248def4f2da38bee.zip | |
Merge branch 'for-next' of git://github.com/rydberg/linux into next
Pull in changes from Henrik: "a trivial MT documentation fix".
Diffstat (limited to 'drivers/acpi/acpica/rscalc.c')
| -rw-r--r-- | drivers/acpi/acpica/rscalc.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/acpi/acpica/rscalc.c b/drivers/acpi/acpica/rscalc.c index 7816d4eef04e..72077fa1eea5 100644 --- a/drivers/acpi/acpica/rscalc.c +++ b/drivers/acpi/acpica/rscalc.c @@ -202,6 +202,12 @@ acpi_rs_get_aml_length(struct acpi_resource * resource, acpi_size * size_needed) return_ACPI_STATUS(AE_AML_INVALID_RESOURCE_TYPE); } + /* Sanity check the length. It must not be zero, or we loop forever */ + + if (!resource->length) { + return_ACPI_STATUS(AE_AML_BAD_RESOURCE_LENGTH); + } + /* Get the base size of the (external stream) resource descriptor */ total_size = acpi_gbl_aml_resource_sizes[resource->type]; |