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authorLinus Torvalds <torvalds@linux-foundation.org>2020-06-07 10:59:32 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2020-06-07 10:59:32 -0700
commit9aa900c8094dba7a60dc805ecec1e9f720744ba1 (patch)
tree3cc09a579f8ea6d3a182076ba722f7c1648e682d /kernel
parentf558b8364e19f9222e7976c64e9367f66bab02cc (diff)
parent05c8a4fc44a916dd897769ca69b42381f9177ec4 (diff)
Merge tag 'char-misc-5.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
Pull char/misc driver updates from Greg KH: "Here is the large set of char/misc driver patches for 5.8-rc1 Included in here are: - habanalabs driver updates, loads - mhi bus driver updates - extcon driver updates - clk driver updates (approved by the clock maintainer) - firmware driver updates - fpga driver updates - gnss driver updates - coresight driver updates - interconnect driver updates - parport driver updates (it's still alive!) - nvmem driver updates - soundwire driver updates - visorbus driver updates - w1 driver updates - various misc driver updates In short, loads of different driver subsystem updates along with the drivers as well. All have been in linux-next for a while with no reported issues" * tag 'char-misc-5.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (233 commits) habanalabs: correctly cast u64 to void* habanalabs: initialize variable to default value extcon: arizona: Fix runtime PM imbalance on error extcon: max14577: Add proper dt-compatible strings extcon: adc-jack: Fix an error handling path in 'adc_jack_probe()' extcon: remove redundant assignment to variable idx w1: omap-hdq: print dev_err if irq flags are not cleared w1: omap-hdq: fix interrupt handling which did show spurious timeouts w1: omap-hdq: fix return value to be -1 if there is a timeout w1: omap-hdq: cleanup to add missing newline for some dev_dbg /dev/mem: Revoke mappings when a driver claims the region misc: xilinx-sdfec: convert get_user_pages() --> pin_user_pages() misc: xilinx-sdfec: cleanup return value in xsdfec_table_write() misc: xilinx-sdfec: improve get_user_pages_fast() error handling nvmem: qfprom: remove incorrect write support habanalabs: handle MMU cache invalidation timeout habanalabs: don't allow hard reset with open processes habanalabs: GAUDI does not support soft-reset habanalabs: add print for soft reset due to event habanalabs: improve MMU cache invalidation code ...
Diffstat (limited to 'kernel')
-rw-r--r--kernel/resource.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/kernel/resource.c b/kernel/resource.c
index 76036a41143b..841737bbda9e 100644
--- a/kernel/resource.c
+++ b/kernel/resource.c
@@ -1126,6 +1126,7 @@ struct resource * __request_region(struct resource *parent,
{
DECLARE_WAITQUEUE(wait, current);
struct resource *res = alloc_resource(GFP_KERNEL);
+ struct resource *orig_parent = parent;
if (!res)
return NULL;
@@ -1176,6 +1177,10 @@ struct resource * __request_region(struct resource *parent,
break;
}
write_unlock(&resource_lock);
+
+ if (res && orig_parent == &iomem_resource)
+ revoke_devmem(res);
+
return res;
}
EXPORT_SYMBOL(__request_region);