Merge branch 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc

* 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc:
  [POWERPC] Fix Oops with TQM5200 on TQM5200
  [POWERPC] mpc5200: Fix null dereference if bestcomm fails to initialize
  [POWERPC] mpc5200-fec: Fix possible NULL dereference in mdio driver
  [POWERPC] Fix crash in init_ipic_sysfs on efika
  [POWERPC] Don't use 64k pages for ioremap on pSeries

4 files changed, 17 insertions, 7 deletions

diff --git a/arch/powerpc/mm/hash_utils_64.c b/arch/powerpc/mm/hash_utils_64.c
index 590f1f67c874..a83dfa3cf40c 100644
--- a/arch/powerpc/mm/hash_utils_64.c
+++ b/arch/powerpc/mm/hash_utils_64.c
@@ -351,9 +351,14 @@ static void __init htab_init_page_sizes(void)
                 mmu_vmalloc_psize = MMU_PAGE_64K;
                 if (mmu_linear_psize == MMU_PAGE_4K)
                         mmu_linear_psize = MMU_PAGE_64K;
-                if (cpu_has_feature(CPU_FTR_CI_LARGE_PAGE))
-                        mmu_io_psize = MMU_PAGE_64K;
-                else
+                if (cpu_has_feature(CPU_FTR_CI_LARGE_PAGE)) {
+                        /*
+                         * Don't use 64k pages for ioremap on pSeries, since
+                         * that would stop us accessing the HEA ethernet.
+                         */
+                        if (!machine_is(pseries))
+                                mmu_io_psize = MMU_PAGE_64K;
+                } else
                         mmu_ci_restrictions = 1;
         }
 #endif /* CONFIG_PPC_64K_PAGES */
diff --git a/arch/powerpc/sysdev/bestcomm/bestcomm.c b/arch/powerpc/sysdev/bestcomm/bestcomm.c
index f589999361e0..64ec7d629363 100644
--- a/arch/powerpc/sysdev/bestcomm/bestcomm.c
+++ b/arch/powerpc/sysdev/bestcomm/bestcomm.c
@@ -52,6 +52,10 @@ bcom_task_alloc(int bd_count, int bd_size, int priv_size)
         int i, tasknum = -1;
         struct bcom_task *tsk;
 
+        /* Don't try to do anything if bestcomm init failed */
+        if (!bcom_eng)
+                return NULL;
+
         /* Get and reserve a task num */
         spin_lock(&bcom_eng->lock);
 
@@ -484,8 +488,8 @@ mpc52xx_bcom_remove(struct of_device *op)
 }
 
 static struct of_device_id mpc52xx_bcom_of_match[] = {
-        { .type = "dma-controller", .compatible = "fsl,mpc5200-bestcomm", },
-        { .type = "dma-controller", .compatible = "mpc5200-bestcomm", },
+        { .compatible = "fsl,mpc5200-bestcomm", },
+        { .compatible = "mpc5200-bestcomm", },
         {},
 };
 
diff --git a/arch/powerpc/sysdev/ipic.c b/arch/powerpc/sysdev/ipic.c
index ae0dbf4c1d66..0f2dfb0aaa6a 100644
--- a/arch/powerpc/sysdev/ipic.c
+++ b/arch/powerpc/sysdev/ipic.c
@@ -906,7 +906,7 @@ static int __init init_ipic_sysfs(void)
 {
         int rc;
 
-        if (!primary_ipic->regs)
+        if (!primary_ipic || !primary_ipic->regs)
                 return -ENODEV;
         printk(KERN_DEBUG "Registering ipic with sysfs...\n");
 
diff --git a/drivers/net/fec_mpc52xx_phy.c b/drivers/net/fec_mpc52xx_phy.c
index 1837584c4504..6a3ac4ea97e9 100644
--- a/drivers/net/fec_mpc52xx_phy.c
+++ b/drivers/net/fec_mpc52xx_phy.c
@@ -109,7 +109,8 @@ static int mpc52xx_fec_mdio_probe(struct of_device *of, const struct of_device_i
                 int irq = irq_of_parse_and_map(child, 0);
                 if (irq != NO_IRQ) {
                         const u32 *id = of_get_property(child, "reg", NULL);
-                        bus->irq[*id] = irq;
+                        if (id)
+                                bus->irq[*id] = irq;
                 }
         }