diff options
Diffstat (limited to 'drivers/pcmcia/cistpl.c')
| -rw-r--r-- | drivers/pcmcia/cistpl.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/pcmcia/cistpl.c b/drivers/pcmcia/cistpl.c index 936417c3e79e..9ad66c9848e3 100644 --- a/drivers/pcmcia/cistpl.c +++ b/drivers/pcmcia/cistpl.c @@ -64,6 +64,7 @@ module_param(cis_width, int, 0444); void release_cis_mem(struct pcmcia_socket *s) { + mutex_lock(&s->ops_mutex); if (s->cis_mem.flags & MAP_ACTIVE) { s->cis_mem.flags &= ~MAP_ACTIVE; s->ops->set_mem_map(s, &s->cis_mem); @@ -75,6 +76,7 @@ void release_cis_mem(struct pcmcia_socket *s) iounmap(s->cis_virt); s->cis_virt = NULL; } + mutex_unlock(&s->ops_mutex); } /* @@ -88,11 +90,13 @@ set_cis_map(struct pcmcia_socket *s, unsigned int card_offset, unsigned int flag pccard_mem_map *mem = &s->cis_mem; int ret; + mutex_lock(&s->ops_mutex); if (!(s->features & SS_CAP_STATIC_MAP) && (mem->res == NULL)) { mem->res = pcmcia_find_mem_region(0, s->map_size, s->map_size, 0, s); if (mem->res == NULL) { dev_printk(KERN_NOTICE, &s->dev, "cs: unable to map card memory!\n"); + mutex_unlock(&s->ops_mutex); return NULL; } s->cis_virt = NULL; @@ -108,6 +112,7 @@ set_cis_map(struct pcmcia_socket *s, unsigned int card_offset, unsigned int flag if (ret) { iounmap(s->cis_virt); s->cis_virt = NULL; + mutex_unlock(&s->ops_mutex); return NULL; } @@ -117,6 +122,7 @@ set_cis_map(struct pcmcia_socket *s, unsigned int card_offset, unsigned int flag s->cis_virt = ioremap(mem->static_start, s->map_size); } + mutex_unlock(&s->ops_mutex); return s->cis_virt; } |