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path: root/drivers/char/ip2/ip2main.c
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Diffstat (limited to 'drivers/char/ip2/ip2main.c')
-rw-r--r--drivers/char/ip2/ip2main.c8
1 files changed, 4 insertions, 4 deletions
diff --git a/drivers/char/ip2/ip2main.c b/drivers/char/ip2/ip2main.c
index d4b71e8d0d23..dfbdf49d1e80 100644
--- a/drivers/char/ip2/ip2main.c
+++ b/drivers/char/ip2/ip2main.c
@@ -98,7 +98,7 @@
98#include <linux/major.h> 98#include <linux/major.h>
99#include <linux/wait.h> 99#include <linux/wait.h>
100#include <linux/device.h> 100#include <linux/device.h>
101#include <linux/smp_lock.h> 101#include <linux/mutex.h>
102#include <linux/firmware.h> 102#include <linux/firmware.h>
103#include <linux/platform_device.h> 103#include <linux/platform_device.h>
104 104
@@ -138,6 +138,7 @@
138#include <linux/proc_fs.h> 138#include <linux/proc_fs.h>
139#include <linux/seq_file.h> 139#include <linux/seq_file.h>
140 140
141static DEFINE_MUTEX(ip2_mutex);
141static const struct file_operations ip2mem_proc_fops; 142static const struct file_operations ip2mem_proc_fops;
142static const struct file_operations ip2_proc_fops; 143static const struct file_operations ip2_proc_fops;
143 144
@@ -2897,7 +2898,7 @@ ip2_ipl_ioctl (struct file *pFile, UINT cmd, ULONG arg )
2897 printk (KERN_DEBUG "IP2IPL: ioctl cmd %d, arg %ld\n", cmd, arg ); 2898 printk (KERN_DEBUG "IP2IPL: ioctl cmd %d, arg %ld\n", cmd, arg );
2898#endif 2899#endif
2899 2900
2900 lock_kernel(); 2901 mutex_lock(&ip2_mutex);
2901 2902
2902 switch ( iplminor ) { 2903 switch ( iplminor ) {
2903 case 0: // IPL device 2904 case 0: // IPL device
@@ -2961,7 +2962,7 @@ ip2_ipl_ioctl (struct file *pFile, UINT cmd, ULONG arg )
2961 rc = -ENODEV; 2962 rc = -ENODEV;
2962 break; 2963 break;
2963 } 2964 }
2964 unlock_kernel(); 2965 mutex_unlock(&ip2_mutex);
2965 return rc; 2966 return rc;
2966} 2967}
2967 2968
@@ -2982,7 +2983,6 @@ ip2_ipl_open( struct inode *pInode, struct file *pFile )
2982#ifdef IP2DEBUG_IPL 2983#ifdef IP2DEBUG_IPL
2983 printk (KERN_DEBUG "IP2IPL: open\n" ); 2984 printk (KERN_DEBUG "IP2IPL: open\n" );
2984#endif 2985#endif
2985 cycle_kernel_lock();
2986 return 0; 2986 return 0;
2987} 2987}
2988 2988