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authorBenoit Cousson <b-cousson@ti.com>2011-12-05 15:23:54 +0100
committerRob Herring <rob.herring@calxeda.com>2011-12-19 15:40:11 -0600
commit88af7f58c6f1fa28d617392c791f11317bcb590d (patch)
tree4787f62c5a7786819682a995c114506c33053e4a /drivers/of/base.c
parent44ad56b7df54cbc8063b46883d183e4e2f09f831 (diff)
of/base: Take NULL string into account for property with multiple strings
The current implementation just ignore any NULL string inserted in a multiple strings property. In some cases we can have a property with a fix number of strings but not necessarily used, like for example in a list of valid pinmux modes. prop = "uart_rx", "uart_tx", "", "", "safe_mode"; Do no skip NULL string and take them into account in of_property_read_string_index and of_property_count_strings. Reported-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Benoit Cousson <b-cousson@ti.com> Cc: Grant Likely <grant.likely@secretlab.ca> Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Diffstat (limited to 'drivers/of/base.c')
-rw-r--r--drivers/of/base.c8
1 files changed, 3 insertions, 5 deletions
diff --git a/drivers/of/base.c b/drivers/of/base.c
index 9b6588ef0673..b7072437eb8c 100644
--- a/drivers/of/base.c
+++ b/drivers/of/base.c
@@ -752,7 +752,7 @@ int of_property_read_string_index(struct device_node *np, const char *propname,
for (i = 0; total < prop->length; total += l, p += l) {
l = strlen(p) + 1;
- if ((*p != 0) && (i++ == index)) {
+ if (i++ == index) {
*output = p;
return 0;
}
@@ -790,11 +790,9 @@ int of_property_count_strings(struct device_node *np, const char *propname)
p = prop->value;
- for (i = 0; total < prop->length; total += l, p += l) {
+ for (i = 0; total < prop->length; total += l, p += l, i++)
l = strlen(p) + 1;
- if (*p != 0)
- i++;
- }
+
return i;
}
EXPORT_SYMBOL_GPL(of_property_count_strings);