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path: root/drivers/pcmcia/cs.c
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Diffstat (limited to 'drivers/pcmcia/cs.c')
-rw-r--r--drivers/pcmcia/cs.c43
1 files changed, 20 insertions, 23 deletions
diff --git a/drivers/pcmcia/cs.c b/drivers/pcmcia/cs.c
index 613f2f1fbfdd..3162998579c1 100644
--- a/drivers/pcmcia/cs.c
+++ b/drivers/pcmcia/cs.c
@@ -16,7 +16,6 @@
16#include <linux/moduleparam.h> 16#include <linux/moduleparam.h>
17#include <linux/init.h> 17#include <linux/init.h>
18#include <linux/kernel.h> 18#include <linux/kernel.h>
19#include <linux/config.h>
20#include <linux/string.h> 19#include <linux/string.h>
21#include <linux/major.h> 20#include <linux/major.h>
22#include <linux/errno.h> 21#include <linux/errno.h>
@@ -111,9 +110,9 @@ int pcmcia_socket_dev_suspend(struct device *dev, pm_message_t state)
111 list_for_each_entry(socket, &pcmcia_socket_list, socket_list) { 110 list_for_each_entry(socket, &pcmcia_socket_list, socket_list) {
112 if (socket->dev.dev != dev) 111 if (socket->dev.dev != dev)
113 continue; 112 continue;
114 down(&socket->skt_sem); 113 mutex_lock(&socket->skt_mutex);
115 socket_suspend(socket); 114 socket_suspend(socket);
116 up(&socket->skt_sem); 115 mutex_unlock(&socket->skt_mutex);
117 } 116 }
118 up_read(&pcmcia_socket_list_rwsem); 117 up_read(&pcmcia_socket_list_rwsem);
119 118
@@ -129,9 +128,9 @@ int pcmcia_socket_dev_resume(struct device *dev)
129 list_for_each_entry(socket, &pcmcia_socket_list, socket_list) { 128 list_for_each_entry(socket, &pcmcia_socket_list, socket_list) {
130 if (socket->dev.dev != dev) 129 if (socket->dev.dev != dev)
131 continue; 130 continue;
132 down(&socket->skt_sem); 131 mutex_lock(&socket->skt_mutex);
133 socket_resume(socket); 132 socket_resume(socket);
134 up(&socket->skt_sem); 133 mutex_unlock(&socket->skt_mutex);
135 } 134 }
136 up_read(&pcmcia_socket_list_rwsem); 135 up_read(&pcmcia_socket_list_rwsem);
137 136
@@ -237,7 +236,7 @@ int pcmcia_register_socket(struct pcmcia_socket *socket)
237 init_completion(&socket->socket_released); 236 init_completion(&socket->socket_released);
238 init_completion(&socket->thread_done); 237 init_completion(&socket->thread_done);
239 init_waitqueue_head(&socket->thread_wait); 238 init_waitqueue_head(&socket->thread_wait);
240 init_MUTEX(&socket->skt_sem); 239 mutex_init(&socket->skt_mutex);
241 spin_lock_init(&socket->thread_lock); 240 spin_lock_init(&socket->thread_lock);
242 241
243 ret = kernel_thread(pccardd, socket, CLONE_KERNEL); 242 ret = kernel_thread(pccardd, socket, CLONE_KERNEL);
@@ -406,8 +405,6 @@ static void socket_shutdown(struct pcmcia_socket *s)
406 cb_free(s); 405 cb_free(s);
407#endif 406#endif
408 s->functions = 0; 407 s->functions = 0;
409 kfree(s->config);
410 s->config = NULL;
411 408
412 s->ops->get_status(s, &status); 409 s->ops->get_status(s, &status);
413 if (status & SS_POWERON) { 410 if (status & SS_POWERON) {
@@ -664,7 +661,7 @@ static int pccardd(void *__skt)
664 spin_unlock_irqrestore(&skt->thread_lock, flags); 661 spin_unlock_irqrestore(&skt->thread_lock, flags);
665 662
666 if (events) { 663 if (events) {
667 down(&skt->skt_sem); 664 mutex_lock(&skt->skt_mutex);
668 if (events & SS_DETECT) 665 if (events & SS_DETECT)
669 socket_detect_change(skt); 666 socket_detect_change(skt);
670 if (events & SS_BATDEAD) 667 if (events & SS_BATDEAD)
@@ -673,7 +670,7 @@ static int pccardd(void *__skt)
673 send_event(skt, CS_EVENT_BATTERY_LOW, CS_EVENT_PRI_LOW); 670 send_event(skt, CS_EVENT_BATTERY_LOW, CS_EVENT_PRI_LOW);
674 if (events & SS_READY) 671 if (events & SS_READY)
675 send_event(skt, CS_EVENT_READY_CHANGE, CS_EVENT_PRI_LOW); 672 send_event(skt, CS_EVENT_READY_CHANGE, CS_EVENT_PRI_LOW);
676 up(&skt->skt_sem); 673 mutex_unlock(&skt->skt_mutex);
677 continue; 674 continue;
678 } 675 }
679 676
@@ -717,8 +714,8 @@ int pccard_register_pcmcia(struct pcmcia_socket *s, struct pcmcia_callback *c)
717{ 714{
718 int ret = 0; 715 int ret = 0;
719 716
720 /* s->skt_sem also protects s->callback */ 717 /* s->skt_mutex also protects s->callback */
721 down(&s->skt_sem); 718 mutex_lock(&s->skt_mutex);
722 719
723 if (c) { 720 if (c) {
724 /* registration */ 721 /* registration */
@@ -734,7 +731,7 @@ int pccard_register_pcmcia(struct pcmcia_socket *s, struct pcmcia_callback *c)
734 } else 731 } else
735 s->callback = NULL; 732 s->callback = NULL;
736 err: 733 err:
737 up(&s->skt_sem); 734 mutex_unlock(&s->skt_mutex);
738 735
739 return ret; 736 return ret;
740} 737}
@@ -752,7 +749,7 @@ int pccard_reset_card(struct pcmcia_socket *skt)
752 749
753 cs_dbg(skt, 1, "resetting socket\n"); 750 cs_dbg(skt, 1, "resetting socket\n");
754 751
755 down(&skt->skt_sem); 752 mutex_lock(&skt->skt_mutex);
756 do { 753 do {
757 if (!(skt->state & SOCKET_PRESENT)) { 754 if (!(skt->state & SOCKET_PRESENT)) {
758 ret = CS_NO_CARD; 755 ret = CS_NO_CARD;
@@ -781,7 +778,7 @@ int pccard_reset_card(struct pcmcia_socket *skt)
781 778
782 ret = CS_SUCCESS; 779 ret = CS_SUCCESS;
783 } while (0); 780 } while (0);
784 up(&skt->skt_sem); 781 mutex_unlock(&skt->skt_mutex);
785 782
786 return ret; 783 return ret;
787} /* reset_card */ 784} /* reset_card */
@@ -797,7 +794,7 @@ int pcmcia_suspend_card(struct pcmcia_socket *skt)
797 794
798 cs_dbg(skt, 1, "suspending socket\n"); 795 cs_dbg(skt, 1, "suspending socket\n");
799 796
800 down(&skt->skt_sem); 797 mutex_lock(&skt->skt_mutex);
801 do { 798 do {
802 if (!(skt->state & SOCKET_PRESENT)) { 799 if (!(skt->state & SOCKET_PRESENT)) {
803 ret = CS_NO_CARD; 800 ret = CS_NO_CARD;
@@ -814,7 +811,7 @@ int pcmcia_suspend_card(struct pcmcia_socket *skt)
814 } 811 }
815 ret = socket_suspend(skt); 812 ret = socket_suspend(skt);
816 } while (0); 813 } while (0);
817 up(&skt->skt_sem); 814 mutex_unlock(&skt->skt_mutex);
818 815
819 return ret; 816 return ret;
820} /* suspend_card */ 817} /* suspend_card */
@@ -827,7 +824,7 @@ int pcmcia_resume_card(struct pcmcia_socket *skt)
827 824
828 cs_dbg(skt, 1, "waking up socket\n"); 825 cs_dbg(skt, 1, "waking up socket\n");
829 826
830 down(&skt->skt_sem); 827 mutex_lock(&skt->skt_mutex);
831 do { 828 do {
832 if (!(skt->state & SOCKET_PRESENT)) { 829 if (!(skt->state & SOCKET_PRESENT)) {
833 ret = CS_NO_CARD; 830 ret = CS_NO_CARD;
@@ -841,7 +838,7 @@ int pcmcia_resume_card(struct pcmcia_socket *skt)
841 if (!ret && skt->callback) 838 if (!ret && skt->callback)
842 skt->callback->resume(skt); 839 skt->callback->resume(skt);
843 } while (0); 840 } while (0);
844 up(&skt->skt_sem); 841 mutex_unlock(&skt->skt_mutex);
845 842
846 return ret; 843 return ret;
847} /* resume_card */ 844} /* resume_card */
@@ -855,7 +852,7 @@ int pcmcia_eject_card(struct pcmcia_socket *skt)
855 852
856 cs_dbg(skt, 1, "user eject request\n"); 853 cs_dbg(skt, 1, "user eject request\n");
857 854
858 down(&skt->skt_sem); 855 mutex_lock(&skt->skt_mutex);
859 do { 856 do {
860 if (!(skt->state & SOCKET_PRESENT)) { 857 if (!(skt->state & SOCKET_PRESENT)) {
861 ret = -ENODEV; 858 ret = -ENODEV;
@@ -871,7 +868,7 @@ int pcmcia_eject_card(struct pcmcia_socket *skt)
871 socket_remove(skt); 868 socket_remove(skt);
872 ret = 0; 869 ret = 0;
873 } while (0); 870 } while (0);
874 up(&skt->skt_sem); 871 mutex_unlock(&skt->skt_mutex);
875 872
876 return ret; 873 return ret;
877} /* eject_card */ 874} /* eject_card */
@@ -884,7 +881,7 @@ int pcmcia_insert_card(struct pcmcia_socket *skt)
884 881
885 cs_dbg(skt, 1, "user insert request\n"); 882 cs_dbg(skt, 1, "user insert request\n");
886 883
887 down(&skt->skt_sem); 884 mutex_lock(&skt->skt_mutex);
888 do { 885 do {
889 if (skt->state & SOCKET_PRESENT) { 886 if (skt->state & SOCKET_PRESENT) {
890 ret = -EBUSY; 887 ret = -EBUSY;
@@ -896,7 +893,7 @@ int pcmcia_insert_card(struct pcmcia_socket *skt)
896 } 893 }
897 ret = 0; 894 ret = 0;
898 } while (0); 895 } while (0);
899 up(&skt->skt_sem); 896 mutex_unlock(&skt->skt_mutex);
900 897
901 return ret; 898 return ret;
902} /* insert_card */ 899} /* insert_card */