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Alchemy Semi Au1000 pcmcia driver: convert pcmcia_sockets_lock in a mutex

PATCH In review Matthias Kaehlcke 3 participants 4 messages Mar 6, 2008 – Mar 7, 2008 Pcmcia

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#0 lore raw

PATCH 1/1 Alchemy Semi Au1000 pcmcia driver: convert pcmcia_sockets_lock in a mutex

Alchemy Semi Au1000 pcmcia driver: The semaphore pcmcia_sockets_lock is used as a mutex, convert it to the mutex API

--

#include <linux/interrupt.h>
#include <linux/spinlock.h>
+#include <linux/mutex.h>
#include <linux/platform_device.h>

#include <asm/io.h>
@@ -71,7 +72,7 @@ extern struct au1000_pcmcia_socket au1000_pcmcia_socket[];
u32 *pcmcia_base_vaddrs[2];
extern const unsigned long mips_io_port_base;

-DECLARE_MUTEX(pcmcia_sockets_lock);
+DEFINE_MUTEX(pcmcia_sockets_lock);

static int (*au1x00_pcmcia_hw_init[])(struct device *dev) = {
au1x_board_init,
@@ -472,7 +473,7 @@ int au1x00_drv_pcmcia_remove(struct device *dev)
struct skt_dev_info *sinfo = dev_get_drvdata(dev); int i;

- down(&pcmcia_sockets_lock);
+ mutex_lock(&pcmcia_sockets_lock);
dev_set_drvdata(dev, NULL);

for (i = 0; i < sinfo->nskt; i++) {
@@ -488,7 +489,7 @@ int au1x00_drv_pcmcia_remove(struct device *dev)
}

kfree(sinfo);
- up(&pcmcia_sockets_lock);
+ mutex_unlock(&pcmcia_sockets_lock);
return 0;
}

@@ -501,13 +502,13 @@ static int au1x00_drv_pcmcia_probe(struct device *dev)
{
int i, ret = -ENODEV;

- down(&pcmcia_sockets_lock);
+ mutex_lock(&pcmcia_sockets_lock);
for (i=0; i < ARRAY_SIZE(au1x00_pcmcia_hw_init); i++) {
ret = au1x00_pcmcia_hw_init[i](dev); if (ret == 0)
break;
}
- up(&pcmcia_sockets_lock);
+ mutex_unlock(&pcmcia_sockets_lock);
return ret;
}

Signature · 12 lines
Matthias Kaehlcke
Linux System Developer
Barcelona

                Don't walk behind me, I may not lead
             Don't walk in front of me, I may not follow
                Just walk beside me and be my friend
                          (Albert Camus)
                                                                 .''`.
    using free software / Debian GNU/Linux | http://debian.org  : :'  :
                                                                `. `'`
gpg --keyserver pgp.mit.edu --recv-keys 47D8E5D4                  `-
#1 lore raw
Quoted 8 lines · Matthias Kaehlcke

Alchemy Semi Au1000 pcmcia driver: The semaphore pcmcia_sockets_lock is used as a mutex, convert it to the mutex API

--

#include <linux/interrupt.h>

This doesn't appear to be in patch format .. There no filename at the top..

Daniel

#2 lore raw

El Thu, Mar 06, 2008 at 07:05:49PM -0800 Daniel Walker ha dit:

Quoted 9 lines · Matthias Kaehlcke
Quoted 5 lines

Alchemy Semi Au1000 pcmcia driver: The semaphore pcmcia_sockets_lock is used as a mutex, convert it to the mutex API

This doesn't appear to be in patch format .. There no filename at the top..

somehow i messed it up when adding the patch to the mail. thanks for the pointer, here comes the good one

Signature · 6 lines
Alchemy Semi Au1000 pcmcia driver: The semaphore pcmcia_sockets_lock
is used as a mutex, convert it to the mutex API
 
Signed-off-by: Matthias Kaehlcke <[email protected]>

-- 
drivers/pcmcia/au1000_generic.c +6 -5
index b693367..97e29c8 100644
@@ -41,6 +41,7 @@
 #include <linux/notifier.h>
 #include <linux/interrupt.h>
 #include <linux/spinlock.h>
+#include <linux/mutex.h>
 #include <linux/platform_device.h>
 
 #include <asm/io.h>
@@ -71,7 +72,7 @@ extern struct au1000_pcmcia_socket au1000_pcmcia_socket[];
 u32 *pcmcia_base_vaddrs[2];
 extern const unsigned long mips_io_port_base;
 
-DECLARE_MUTEX(pcmcia_sockets_lock);
+DEFINE_MUTEX(pcmcia_sockets_lock);
 
 static int (*au1x00_pcmcia_hw_init[])(struct device *dev) = {
 	au1x_board_init,
@@ -472,7 +473,7 @@ int au1x00_drv_pcmcia_remove(struct device *dev)
 	struct skt_dev_info *sinfo = dev_get_drvdata(dev);
 	int i;
 
-	down(&pcmcia_sockets_lock);
+	mutex_lock(&pcmcia_sockets_lock);
 	dev_set_drvdata(dev, NULL);
 
 	for (i = 0; i < sinfo->nskt; i++) {
@@ -488,7 +489,7 @@ int au1x00_drv_pcmcia_remove(struct device *dev)
 	}
 
 	kfree(sinfo);
-	up(&pcmcia_sockets_lock);
+	mutex_unlock(&pcmcia_sockets_lock);
 	return 0;
 }
 
@@ -501,13 +502,13 @@ static int au1x00_drv_pcmcia_probe(struct device *dev)
 {
 	int i, ret = -ENODEV;
 
-	down(&pcmcia_sockets_lock);
+	mutex_lock(&pcmcia_sockets_lock);
 	for (i=0; i < ARRAY_SIZE(au1x00_pcmcia_hw_init); i++) {
 		ret = au1x00_pcmcia_hw_init[i](dev);
 		if (ret == 0)
 			break;
 	}
-	up(&pcmcia_sockets_lock);
+	mutex_unlock(&pcmcia_sockets_lock);
 	return ret;
 }
 
Signature · 10 lines
Matthias Kaehlcke
Linux System Developer
Barcelona

      Anyone who has never made a mistake has never tried anything new
                            (Albert Einstein)
                                                                 .''`.
    using free software / Debian GNU/Linux | http://debian.org  : :'  :
                                                                `. `'`
gpg --keyserver pgp.mit.edu --recv-keys 47D8E5D4                  `-
#3 lore raw
Quoted 6 lines · On Fri, 7 Mar 2008 08:13:42 +0100 Matthias Kaehlcke <[email protected]>…

El Thu, Mar 06, 2008 at 07:05:49PM -0800 Daniel Walker ha dit:

Quoted 4 lines · Matthias Kaehlcke
Quoted 3 lines

Alchemy Semi Au1000 pcmcia driver: The semaphore pcmcia_sockets_lock is used as a mutex, convert it to the mutex API

Quoted 13 lines
Quoted 5 lines
Quoted 2 lines

This doesn't appear to be in patch format .. There no filename at the top..

somehow i messed it up when adding the patch to the mail. thanks for the pointer, here comes the good one

Signature · 2 lines
Alchemy Semi Au1000 pcmcia driver: The semaphore pcmcia_sockets_lock
is used as a mutex, convert it to the mutex API

OK.

drivers/pcmcia/au1000_generic.c extern struct au1000_pcmcia_socket au1000_pcmcia_socket[]; · line 75

Quoted 6 lines
drivers/pcmcia/au1000_generic.c +1 -1
@@ -71,7 +72,7 @@ extern struct au1000_pcmcia_socket au1000_pcmcia_socket[];
 u32 *pcmcia_base_vaddrs[2];
 extern const unsigned long mips_io_port_base;
 
-DECLARE_MUTEX(pcmcia_sockets_lock);
+DEFINE_MUTEX(pcmcia_sockets_lock);

I'll make this static while we're in there.