[PATCH 3.2 144/149] hwmon: (applesmc) Silence uninitialized warnings

From: Ben Hutchings
Date: Mon Oct 21 2013 - 04:55:42 EST


3.2.52-rc1 review patch. If anyone has any objections, please let me know.

------------------

From: Henrik Rydberg <rydberg@xxxxxxxxxxx>

commit 0fc86eca1b338d06ec500b34ef7def79c32b602b upstream.

Some error paths do not set a result, leading to the (false)
assumption that the value may be used uninitialized. Set results for
those paths as well.

Signed-off-by: Henrik Rydberg <rydberg@xxxxxxxxxxx>
Signed-off-by: Guenter Roeck <guenter.roeck@xxxxxxxxxxxx>
Signed-off-by: Ben Hutchings <ben@xxxxxxxxxxxxxxx>
---
drivers/hwmon/applesmc.c | 8 ++++++--
1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/drivers/hwmon/applesmc.c b/drivers/hwmon/applesmc.c
index 1b13085..f082e48 100644
--- a/drivers/hwmon/applesmc.c
+++ b/drivers/hwmon/applesmc.c
@@ -344,8 +344,10 @@ static int applesmc_get_lower_bound(unsigned int *lo, const char *key)
while (begin != end) {
int middle = begin + (end - begin) / 2;
entry = applesmc_get_entry_by_index(middle);
- if (IS_ERR(entry))
+ if (IS_ERR(entry)) {
+ *lo = 0;
return PTR_ERR(entry);
+ }
if (strcmp(entry->key, key) < 0)
begin = middle + 1;
else
@@ -364,8 +366,10 @@ static int applesmc_get_upper_bound(unsigned int *hi, const char *key)
while (begin != end) {
int middle = begin + (end - begin) / 2;
entry = applesmc_get_entry_by_index(middle);
- if (IS_ERR(entry))
+ if (IS_ERR(entry)) {
+ *hi = smcreg.key_count;
return PTR_ERR(entry);
+ }
if (strcmp(key, entry->key) < 0)
end = middle;
else

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