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path: root/drivers/pcmcia/rsrc_nonstatic.c
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Diffstat (limited to 'drivers/pcmcia/rsrc_nonstatic.c')
-rw-r--r--drivers/pcmcia/rsrc_nonstatic.c12
1 files changed, 9 insertions, 3 deletions
diff --git a/drivers/pcmcia/rsrc_nonstatic.c b/drivers/pcmcia/rsrc_nonstatic.c
index bb15a8bdbaab..6b6c578b5f92 100644
--- a/drivers/pcmcia/rsrc_nonstatic.c
+++ b/drivers/pcmcia/rsrc_nonstatic.c
@@ -690,6 +690,9 @@ static struct resource *__nonstatic_find_io_region(struct pcmcia_socket *s,
unsigned long min = base;
int ret;
+ if (!res)
+ return NULL;
+
data.mask = align - 1;
data.offset = base & data.mask;
data.map = &s_data->io_db;
@@ -809,6 +812,9 @@ static struct resource *nonstatic_find_mem_region(u_long base, u_long num,
unsigned long min, max;
int ret, i, j;
+ if (!res)
+ return NULL;
+
low = low || !(s->features & SS_CAP_PAGE_REGS);
data.mask = align - 1;
@@ -1076,7 +1082,7 @@ static ssize_t show_io_db(struct device *dev,
for (p = data->io_db.next; p != &data->io_db; p = p->next) {
if (ret > (PAGE_SIZE - 10))
continue;
- ret += scnprintf(&buf[ret], (PAGE_SIZE - ret - 1),
+ ret += sysfs_emit_at(buf, ret,
"0x%08lx - 0x%08lx\n",
((unsigned long) p->base),
((unsigned long) p->base + p->num - 1));
@@ -1133,7 +1139,7 @@ static ssize_t show_mem_db(struct device *dev,
p = p->next) {
if (ret > (PAGE_SIZE - 10))
continue;
- ret += scnprintf(&buf[ret], (PAGE_SIZE - ret - 1),
+ ret += sysfs_emit_at(buf, ret,
"0x%08lx - 0x%08lx\n",
((unsigned long) p->base),
((unsigned long) p->base + p->num - 1));
@@ -1142,7 +1148,7 @@ static ssize_t show_mem_db(struct device *dev,
for (p = data->mem_db.next; p != &data->mem_db; p = p->next) {
if (ret > (PAGE_SIZE - 10))
continue;
- ret += scnprintf(&buf[ret], (PAGE_SIZE - ret - 1),
+ ret += sysfs_emit_at(buf, ret,
"0x%08lx - 0x%08lx\n",
((unsigned long) p->base),
((unsigned long) p->base + p->num - 1));