diff options
Diffstat (limited to 'arch/mips/kernel')
| -rw-r--r-- | arch/mips/kernel/cevt-txx9.c | 3 | ||||
| -rw-r--r-- | arch/mips/kernel/rtlx.c | 7 | ||||
| -rw-r--r-- | arch/mips/kernel/stacktrace.c | 1 | ||||
| -rw-r--r-- | arch/mips/kernel/vpe.c | 12 |
4 files changed, 19 insertions, 4 deletions
diff --git a/arch/mips/kernel/cevt-txx9.c b/arch/mips/kernel/cevt-txx9.c index 795cb8fb0d74..b5fc4eb412d2 100644 --- a/arch/mips/kernel/cevt-txx9.c +++ b/arch/mips/kernel/cevt-txx9.c @@ -161,6 +161,9 @@ void __init txx9_tmr_init(unsigned long baseaddr) struct txx9_tmr_reg __iomem *tmrptr; tmrptr = ioremap(baseaddr, sizeof(struct txx9_tmr_reg)); + /* Start once to make CounterResetEnable effective */ + __raw_writel(TXx9_TMTCR_CRE | TXx9_TMTCR_TCE, &tmrptr->tcr); + /* Stop and reset the counter */ __raw_writel(TXx9_TMTCR_CRE, &tmrptr->tcr); __raw_writel(0, &tmrptr->tisr); __raw_writel(0xffffffff, &tmrptr->cpra); diff --git a/arch/mips/kernel/rtlx.c b/arch/mips/kernel/rtlx.c index b88f1c18ff4d..b55641961232 100644 --- a/arch/mips/kernel/rtlx.c +++ b/arch/mips/kernel/rtlx.c @@ -28,6 +28,7 @@ #include <linux/vmalloc.h> #include <linux/elf.h> #include <linux/seq_file.h> +#include <linux/smp_lock.h> #include <linux/syscalls.h> #include <linux/moduleloader.h> #include <linux/interrupt.h> @@ -392,8 +393,12 @@ out: static int file_open(struct inode *inode, struct file *filp) { int minor = iminor(inode); + int err; - return rtlx_open(minor, (filp->f_flags & O_NONBLOCK) ? 0 : 1); + lock_kernel(); + err = rtlx_open(minor, (filp->f_flags & O_NONBLOCK) ? 0 : 1); + unlock_kernel(); + return err; } static int file_release(struct inode *inode, struct file *filp) diff --git a/arch/mips/kernel/stacktrace.c b/arch/mips/kernel/stacktrace.c index ebd9db8d1ece..5eb4681a73d2 100644 --- a/arch/mips/kernel/stacktrace.c +++ b/arch/mips/kernel/stacktrace.c @@ -73,3 +73,4 @@ void save_stack_trace(struct stack_trace *trace) prepare_frametrace(regs); save_context_stack(trace, regs); } +EXPORT_SYMBOL_GPL(save_stack_trace); diff --git a/arch/mips/kernel/vpe.c b/arch/mips/kernel/vpe.c index 2794501ff302..972b2d2b8401 100644 --- a/arch/mips/kernel/vpe.c +++ b/arch/mips/kernel/vpe.c @@ -38,6 +38,7 @@ #include <linux/vmalloc.h> #include <linux/elf.h> #include <linux/seq_file.h> +#include <linux/smp_lock.h> #include <linux/syscalls.h> #include <linux/moduleloader.h> #include <linux/interrupt.h> @@ -1050,17 +1051,20 @@ static int vpe_open(struct inode *inode, struct file *filp) enum vpe_state state; struct vpe_notifications *not; struct vpe *v; - int ret; + int ret, err = 0; + lock_kernel(); if (minor != iminor(inode)) { /* assume only 1 device at the moment. */ printk(KERN_WARNING "VPE loader: only vpe1 is supported\n"); - return -ENODEV; + err = -ENODEV; + goto out; } if ((v = get_vpe(tclimit)) == NULL) { printk(KERN_WARNING "VPE loader: unable to get vpe\n"); - return -ENODEV; + err = -ENODEV; + goto out; } state = xchg(&v->state, VPE_STATE_INUSE); @@ -1100,6 +1104,8 @@ static int vpe_open(struct inode *inode, struct file *filp) v->shared_ptr = NULL; v->__start = 0; +out: + unlock_kernel(); return 0; } |
