diff options
author | Ingo Molnar <mingo@elte.hu> | 2008-07-18 21:13:20 +0200 |
---|---|---|
committer | Ingo Molnar <mingo@elte.hu> | 2008-07-18 21:13:20 +0200 |
commit | f6dc8ccaab6d8f63cbae1e6c73fe972b26f5376c (patch) | |
tree | c5643fcdc884a8d0bfc3f1bc28039cab7394e5bc /arch/cris/arch-v32/drivers | |
parent | 323ec001c6bb98eeabb5abbdbb8c8055d9496554 (diff) | |
parent | 5b664cb235e97afbf34db9c4d77f08ebd725335e (diff) |
Merge branch 'linus' into core/generic-dma-coherent
Conflicts:
kernel/Makefile
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/cris/arch-v32/drivers')
-rw-r--r-- | arch/cris/arch-v32/drivers/cryptocop.c | 3 | ||||
-rw-r--r-- | arch/cris/arch-v32/drivers/i2c.c | 2 | ||||
-rw-r--r-- | arch/cris/arch-v32/drivers/mach-a3/gpio.c | 4 | ||||
-rw-r--r-- | arch/cris/arch-v32/drivers/mach-fs/gpio.c | 5 | ||||
-rw-r--r-- | arch/cris/arch-v32/drivers/sync_serial.c | 33 |
5 files changed, 32 insertions, 15 deletions
diff --git a/arch/cris/arch-v32/drivers/cryptocop.c b/arch/cris/arch-v32/drivers/cryptocop.c index 9fb58202be9..67c61ea8681 100644 --- a/arch/cris/arch-v32/drivers/cryptocop.c +++ b/arch/cris/arch-v32/drivers/cryptocop.c @@ -11,6 +11,7 @@ #include <linux/string.h> #include <linux/fs.h> #include <linux/mm.h> +#include <linux/smp_lock.h> #include <linux/spinlock.h> #include <linux/stddef.h> @@ -2302,11 +2303,11 @@ static int cryptocop_job_setup(struct cryptocop_prio_job **pj, struct cryptocop_ return 0; } - static int cryptocop_open(struct inode *inode, struct file *filp) { int p = iminor(inode); + cycle_kernel_lock(); if (p != CRYPTOCOP_MINOR) return -EINVAL; filp->private_data = NULL; diff --git a/arch/cris/arch-v32/drivers/i2c.c b/arch/cris/arch-v32/drivers/i2c.c index c2fb7a5c139..179e7b80433 100644 --- a/arch/cris/arch-v32/drivers/i2c.c +++ b/arch/cris/arch-v32/drivers/i2c.c @@ -33,6 +33,7 @@ #include <linux/fs.h> #include <linux/string.h> #include <linux/init.h> +#include <linux/smp_lock.h> #include <asm/etraxi2c.h> @@ -636,6 +637,7 @@ i2c_readreg(unsigned char theSlave, unsigned char theReg) static int i2c_open(struct inode *inode, struct file *filp) { + cycle_kernel_lock(); return 0; } diff --git a/arch/cris/arch-v32/drivers/mach-a3/gpio.c b/arch/cris/arch-v32/drivers/mach-a3/gpio.c index de107dad9f4..ef98608e506 100644 --- a/arch/cris/arch-v32/drivers/mach-a3/gpio.c +++ b/arch/cris/arch-v32/drivers/mach-a3/gpio.c @@ -23,6 +23,7 @@ #include <linux/init.h> #include <linux/interrupt.h> #include <linux/spinlock.h> +#include <linux/smp_lock.h> #include <asm/etraxgpio.h> #include <hwregs/reg_map.h> @@ -390,6 +391,8 @@ static int gpio_open(struct inode *inode, struct file *filp) if (!priv) return -ENOMEM; + + lock_kernel(); memset(priv, 0, sizeof(*priv)); priv->minor = p; @@ -412,6 +415,7 @@ static int gpio_open(struct inode *inode, struct file *filp) spin_unlock_irq(&gpio_lock); } + unlock_kernel(); return 0; } diff --git a/arch/cris/arch-v32/drivers/mach-fs/gpio.c b/arch/cris/arch-v32/drivers/mach-fs/gpio.c index 7863fd4efc2..fe1fde89388 100644 --- a/arch/cris/arch-v32/drivers/mach-fs/gpio.c +++ b/arch/cris/arch-v32/drivers/mach-fs/gpio.c @@ -22,6 +22,7 @@ #include <linux/init.h> #include <linux/interrupt.h> #include <linux/spinlock.h> +#include <linux/smp_lock.h> #include <asm/etraxgpio.h> #include <hwregs/reg_map.h> @@ -426,9 +427,10 @@ gpio_open(struct inode *inode, struct file *filp) return -EINVAL; priv = kmalloc(sizeof(struct gpio_private), GFP_KERNEL); - if (!priv) return -ENOMEM; + + lock_kernel(); memset(priv, 0, sizeof(*priv)); priv->minor = p; @@ -449,6 +451,7 @@ gpio_open(struct inode *inode, struct file *filp) alarmlist = priv; spin_unlock_irq(&alarm_lock); + unlock_kernel(); return 0; } diff --git a/arch/cris/arch-v32/drivers/sync_serial.c b/arch/cris/arch-v32/drivers/sync_serial.c index 47c377df6fb..d2a0fbf5341 100644 --- a/arch/cris/arch-v32/drivers/sync_serial.c +++ b/arch/cris/arch-v32/drivers/sync_serial.c @@ -14,6 +14,7 @@ #include <linux/major.h> #include <linux/sched.h> #include <linux/slab.h> +#include <linux/smp_lock.h> #include <linux/interrupt.h> #include <linux/poll.h> #include <linux/init.h> @@ -429,23 +430,26 @@ static inline int sync_data_avail_to_end(struct sync_port *port) static int sync_serial_open(struct inode *inode, struct file *file) { int dev = iminor(inode); + int ret = -EBUSY; sync_port *port; reg_dma_rw_cfg cfg = {.en = regk_dma_yes}; reg_dma_rw_intr_mask intr_mask = {.data = regk_dma_yes}; + lock_kernel(); DEBUG(printk(KERN_DEBUG "Open sync serial port %d\n", dev)); if (dev < 0 || dev >= NBR_PORTS || !ports[dev].enabled) { DEBUG(printk(KERN_DEBUG "Invalid minor %d\n", dev)); - return -ENODEV; + ret = -ENODEV; + goto out; } port = &ports[dev]; /* Allow open this device twice (assuming one reader and one writer) */ if (port->busy == 2) { DEBUG(printk(KERN_DEBUG "Device is busy.. \n")); - return -EBUSY; + goto out; } @@ -459,7 +463,7 @@ static int sync_serial_open(struct inode *inode, struct file *file) "synchronous serial 0 dma tr", &ports[0])) { printk(KERN_CRIT "Can't allocate sync serial port 0 IRQ"); - return -EBUSY; + goto out; } else if (request_irq(DMA_IN_INTR_VECT, rx_interrupt, 0, @@ -467,7 +471,7 @@ static int sync_serial_open(struct inode *inode, struct file *file) &ports[0])) { free_irq(DMA_OUT_INTR_VECT, &port[0]); printk(KERN_CRIT "Can't allocate sync serial port 0 IRQ"); - return -EBUSY; + goto out; } else if (crisv32_request_dma(OUT_DMA_NBR, "synchronous serial 0 dma tr", DMA_VERBOSE_ON_ERROR, @@ -476,7 +480,7 @@ static int sync_serial_open(struct inode *inode, struct file *file) free_irq(DMA_OUT_INTR_VECT, &port[0]); free_irq(DMA_IN_INTR_VECT, &port[0]); printk(KERN_CRIT "Can't allocate sync serial port 0 TX DMA channel"); - return -EBUSY; + goto out; } else if (crisv32_request_dma(IN_DMA_NBR, "synchronous serial 0 dma rec", DMA_VERBOSE_ON_ERROR, @@ -486,7 +490,7 @@ static int sync_serial_open(struct inode *inode, struct file *file) free_irq(DMA_OUT_INTR_VECT, &port[0]); free_irq(DMA_IN_INTR_VECT, &port[0]); printk(KERN_CRIT "Can't allocate sync serial port 1 RX DMA channel"); - return -EBUSY; + goto out; } #endif } @@ -499,7 +503,7 @@ static int sync_serial_open(struct inode *inode, struct file *file) "synchronous serial 1 dma tr", &ports[1])) { printk(KERN_CRIT "Can't allocate sync serial port 1 IRQ"); - return -EBUSY; + goto out; } else if (request_irq(DMA7_INTR_VECT, rx_interrupt, 0, @@ -507,7 +511,7 @@ static int sync_serial_open(struct inode *inode, struct file *file) &ports[1])) { free_irq(DMA6_INTR_VECT, &ports[1]); printk(KERN_CRIT "Can't allocate sync serial port 3 IRQ"); - return -EBUSY; + goto out; } else if (crisv32_request_dma( SYNC_SER1_TX_DMA_NBR, "synchronous serial 1 dma tr", @@ -517,7 +521,7 @@ static int sync_serial_open(struct inode *inode, struct file *file) free_irq(DMA6_INTR_VECT, &ports[1]); free_irq(DMA7_INTR_VECT, &ports[1]); printk(KERN_CRIT "Can't allocate sync serial port 3 TX DMA channel"); - return -EBUSY; + goto out; } else if (crisv32_request_dma( SYNC_SER1_RX_DMA_NBR, "synchronous serial 3 dma rec", @@ -528,7 +532,7 @@ static int sync_serial_open(struct inode *inode, struct file *file) free_irq(DMA6_INTR_VECT, &ports[1]); free_irq(DMA7_INTR_VECT, &ports[1]); printk(KERN_CRIT "Can't allocate sync serial port 3 RX DMA channel"); - return -EBUSY; + goto out; } #endif } @@ -554,7 +558,7 @@ static int sync_serial_open(struct inode *inode, struct file *file) "synchronous serial manual irq", &ports[0])) { printk("Can't allocate sync serial manual irq"); - return -EBUSY; + goto out; } } #ifdef CONFIG_ETRAXFS @@ -565,7 +569,7 @@ static int sync_serial_open(struct inode *inode, struct file *file) "synchronous serial manual irq", &ports[1])) { printk(KERN_CRIT "Can't allocate sync serial manual irq"); - return -EBUSY; + goto out; } } #endif @@ -578,7 +582,10 @@ static int sync_serial_open(struct inode *inode, struct file *file) } /* port->init_irqs */ port->busy++; - return 0; + ret = 0; +out: + unlock_kernel(); + return ret; } static int sync_serial_release(struct inode *inode, struct file *file) |