Merge tag 'v3.15-rc6' into patchwork

Linux 3.15-rc6

* tag 'v3.15-rc6': (1314 commits)
  Linux 3.15-rc6
  Btrfs: send, fix incorrect ref access when using extrefs
  Btrfs: fix EIO on reading file after ioctl clone works on it
  scripts/checksyscalls.sh: Make renameat optional
  asm-generic: Add renameat2 syscall
  ia64: add renameat2 syscall
  parisc: add renameat2 syscall
  m68k: add renameat2 syscall
  sysfs: make sure read buffer is zeroed
  ahci: imx: PLL clock needs 100us to settle down
  PCI: Wrong register used to check pending traffic
  target: fix memory leak on XCOPY
  random: fix BUG_ON caused by accounting simplification
  clk: tegra: Fix wrong value written to PLLE_AUX
  staging: rtl8723au: Do not reset wdev->iftype in netdev_close()
  ACPI / video: Revert native brightness quirk for ThinkPad T530
  staging: rtl8723au: Use correct pipe type for USB interrupts
  crush: decode and initialize chooseleaf_vary_r
  libceph: fix corruption when using page_count 0 page in rbd
  arm64: fix pud_huge() for 2-level pagetables
  ...

1 files changed, 13 insertions, 2 deletions

diff --git a/arch/arm/mach-omap2/gpmc.c b/arch/arm/mach-omap2/gpmc.c
index ab43755364f..9fe8c949305 100644
--- a/arch/arm/mach-omap2/gpmc.c
+++ b/arch/arm/mach-omap2/gpmc.c
@@ -501,7 +501,7 @@ static int gpmc_cs_delete_mem(int cs)
 	int r;
 
 	spin_lock(&gpmc_mem_lock);
-	r = release_resource(&gpmc_cs_mem[cs]);
+	r = release_resource(res);
 	res->start = 0;
 	res->end = 0;
 	spin_unlock(&gpmc_mem_lock);
@@ -527,6 +527,14 @@ static int gpmc_cs_remap(int cs, u32 base)
 		pr_err("%s: requested chip-select is disabled\n", __func__);
 		return -ENODEV;
 	}
+
+	/*
+	 * Make sure we ignore any device offsets from the GPMC partition
+	 * allocated for the chip select and that the new base confirms
+	 * to the GPMC 16MB minimum granularity.
+	 */ 
+	base &= ~(SZ_16M - 1);
+
 	gpmc_cs_get_memconf(cs, &old_base, &size);
 	if (base == old_base)
 		return 0;
@@ -586,6 +594,8 @@ EXPORT_SYMBOL(gpmc_cs_request);
 
 void gpmc_cs_free(int cs)
 {
+	struct resource	*res = &gpmc_cs_mem[cs];
+
 	spin_lock(&gpmc_mem_lock);
 	if (cs >= gpmc_cs_num || cs < 0 || !gpmc_cs_reserved(cs)) {
 		printk(KERN_ERR "Trying to free non-reserved GPMC CS%d\n", cs);
@@ -594,7 +604,8 @@ void gpmc_cs_free(int cs)
 		return;
 	}
 	gpmc_cs_disable_mem(cs);
-	release_resource(&gpmc_cs_mem[cs]);
+	if (res->flags)
+		release_resource(res);
 	gpmc_cs_set_reserved(cs, 0);
 	spin_unlock(&gpmc_mem_lock);
 }