diff options
Diffstat (limited to 'drivers/pnp')
| -rw-r--r-- | drivers/pnp/isapnp/core.c | 1 | ||||
| -rw-r--r-- | drivers/pnp/manager.c | 1 | ||||
| -rw-r--r-- | drivers/pnp/pnpacpi/core.c | 1 | ||||
| -rw-r--r-- | drivers/pnp/pnpacpi/rsparser.c | 43 | ||||
| -rw-r--r-- | drivers/pnp/pnpbios/bioscalls.c | 1 | ||||
| -rw-r--r-- | drivers/pnp/pnpbios/rsparser.c | 1 | ||||
| -rw-r--r-- | drivers/pnp/resource.c | 1 |
7 files changed, 33 insertions, 16 deletions
diff --git a/drivers/pnp/isapnp/core.c b/drivers/pnp/isapnp/core.c index e851160e14f0..918d5f044865 100644 --- a/drivers/pnp/isapnp/core.c +++ b/drivers/pnp/isapnp/core.c @@ -37,7 +37,6 @@ #include <linux/module.h> #include <linux/kernel.h> #include <linux/errno.h> -#include <linux/slab.h> #include <linux/delay.h> #include <linux/init.h> #include <linux/isapnp.h> diff --git a/drivers/pnp/manager.c b/drivers/pnp/manager.c index 00fd3577b985..0a15664eef1c 100644 --- a/drivers/pnp/manager.c +++ b/drivers/pnp/manager.c @@ -12,7 +12,6 @@ #include <linux/init.h> #include <linux/kernel.h> #include <linux/pnp.h> -#include <linux/slab.h> #include <linux/bitmap.h> #include <linux/mutex.h> #include "base.h" diff --git a/drivers/pnp/pnpacpi/core.c b/drivers/pnp/pnpacpi/core.c index 5314bf630bc4..f7ff628b7d94 100644 --- a/drivers/pnp/pnpacpi/core.c +++ b/drivers/pnp/pnpacpi/core.c @@ -21,6 +21,7 @@ #include <linux/acpi.h> #include <linux/pnp.h> +#include <linux/slab.h> #include <linux/mod_devicetable.h> #include <acpi/acpi_bus.h> diff --git a/drivers/pnp/pnpacpi/rsparser.c b/drivers/pnp/pnpacpi/rsparser.c index 54514aa35b09..35bb44af49b3 100644 --- a/drivers/pnp/pnpacpi/rsparser.c +++ b/drivers/pnp/pnpacpi/rsparser.c @@ -24,6 +24,7 @@ #include <linux/acpi.h> #include <linux/pci.h> #include <linux/pnp.h> +#include <linux/slab.h> #include "../base.h" #include "pnpacpi.h" @@ -273,12 +274,33 @@ static void pnpacpi_parse_allocated_busresource(struct pnp_dev *dev, pnp_add_bus_resource(dev, start, end); } +static u64 addr_space_length(struct pnp_dev *dev, u64 min, u64 max, u64 len) +{ + u64 max_len; + + max_len = max - min + 1; + if (len <= max_len) + return len; + + /* + * Per 6.4.3.5, _LEN cannot exceed _MAX - _MIN + 1, but some BIOSes + * don't do this correctly, e.g., + * https://bugzilla.kernel.org/show_bug.cgi?id=15480 + */ + dev_info(&dev->dev, + "resource length %#llx doesn't fit in %#llx-%#llx, trimming\n", + (unsigned long long) len, (unsigned long long) min, + (unsigned long long) max); + return max_len; +} + static void pnpacpi_parse_allocated_address_space(struct pnp_dev *dev, struct acpi_resource *res) { struct acpi_resource_address64 addr, *p = &addr; acpi_status status; int window; + u64 len; status = acpi_resource_to_address64(res, p); if (!ACPI_SUCCESS(status)) { @@ -287,20 +309,18 @@ static void pnpacpi_parse_allocated_address_space(struct pnp_dev *dev, return; } + len = addr_space_length(dev, p->minimum, p->maximum, p->address_length); window = (p->producer_consumer == ACPI_PRODUCER) ? 1 : 0; if (p->resource_type == ACPI_MEMORY_RANGE) - pnpacpi_parse_allocated_memresource(dev, - p->minimum, p->address_length, + pnpacpi_parse_allocated_memresource(dev, p->minimum, len, p->info.mem.write_protect, window); else if (p->resource_type == ACPI_IO_RANGE) - pnpacpi_parse_allocated_ioresource(dev, - p->minimum, p->address_length, + pnpacpi_parse_allocated_ioresource(dev, p->minimum, len, p->granularity == 0xfff ? ACPI_DECODE_10 : ACPI_DECODE_16, window); else if (p->resource_type == ACPI_BUS_NUMBER_RANGE) - pnpacpi_parse_allocated_busresource(dev, p->minimum, - p->address_length); + pnpacpi_parse_allocated_busresource(dev, p->minimum, len); } static void pnpacpi_parse_allocated_ext_address_space(struct pnp_dev *dev, @@ -308,21 +328,20 @@ static void pnpacpi_parse_allocated_ext_address_space(struct pnp_dev *dev, { struct acpi_resource_extended_address64 *p = &res->data.ext_address64; int window; + u64 len; + len = addr_space_length(dev, p->minimum, p->maximum, p->address_length); window = (p->producer_consumer == ACPI_PRODUCER) ? 1 : 0; if (p->resource_type == ACPI_MEMORY_RANGE) - pnpacpi_parse_allocated_memresource(dev, - p->minimum, p->address_length, + pnpacpi_parse_allocated_memresource(dev, p->minimum, len, p->info.mem.write_protect, window); else if (p->resource_type == ACPI_IO_RANGE) - pnpacpi_parse_allocated_ioresource(dev, - p->minimum, p->address_length, + pnpacpi_parse_allocated_ioresource(dev, p->minimum, len, p->granularity == 0xfff ? ACPI_DECODE_10 : ACPI_DECODE_16, window); else if (p->resource_type == ACPI_BUS_NUMBER_RANGE) - pnpacpi_parse_allocated_busresource(dev, p->minimum, - p->address_length); + pnpacpi_parse_allocated_busresource(dev, p->minimum, len); } static acpi_status pnpacpi_allocated_resource(struct acpi_resource *res, diff --git a/drivers/pnp/pnpbios/bioscalls.c b/drivers/pnp/pnpbios/bioscalls.c index fc83783c3a96..8591f6ab1b35 100644 --- a/drivers/pnp/pnpbios/bioscalls.c +++ b/drivers/pnp/pnpbios/bioscalls.c @@ -11,7 +11,6 @@ #include <linux/pnp.h> #include <linux/mm.h> #include <linux/smp.h> -#include <linux/slab.h> #include <linux/kmod.h> #include <linux/completion.h> #include <linux/spinlock.h> diff --git a/drivers/pnp/pnpbios/rsparser.c b/drivers/pnp/pnpbios/rsparser.c index a5135ebe5f07..cb1f47bfee96 100644 --- a/drivers/pnp/pnpbios/rsparser.c +++ b/drivers/pnp/pnpbios/rsparser.c @@ -5,7 +5,6 @@ #include <linux/ctype.h> #include <linux/pnp.h> #include <linux/string.h> -#include <linux/slab.h> #ifdef CONFIG_PCI #include <linux/pci.h> diff --git a/drivers/pnp/resource.c b/drivers/pnp/resource.c index 5b277dbaacde..2e54e6a23c72 100644 --- a/drivers/pnp/resource.c +++ b/drivers/pnp/resource.c @@ -8,6 +8,7 @@ */ #include <linux/module.h> +#include <linux/slab.h> #include <linux/errno.h> #include <linux/interrupt.h> #include <linux/kernel.h> |