[PATCH] staging: altera-stapl: Fix memory leak of altera_init()

From: Andre Bartke
Date: Mon May 30 2011 - 16:47:03 EST


In case kzalloc() fails the second or third time
we should free the previous allocated resources.

Signed-off-by: Andre Bartke <andre.bartke@xxxxxxxxx>
---
drivers/staging/altera-stapl/altera.c | 9 +++++++--
1 files changed, 7 insertions(+), 2 deletions(-)

diff --git a/drivers/staging/altera-stapl/altera.c b/drivers/staging/altera-stapl/altera.c
index 05aad35..56ba557 100644
--- a/drivers/staging/altera-stapl/altera.c
+++ b/drivers/staging/altera-stapl/altera.c
@@ -2435,11 +2435,16 @@ int altera_init(struct altera_config *config, const struct firmware *fw)
if (!key)
return -ENOMEM;
value = kzalloc(257 * sizeof(char), GFP_KERNEL);
- if (!value)
+ if (!value) {
+ kfree(key);
return -ENOMEM;
+ }
astate = kzalloc(sizeof(struct altera_state), GFP_KERNEL);
- if (!astate)
+ if (!astate) {
+ kfree(key);
+ kfree(value);
return -ENOMEM;
+ }

astate->config = config;
if (!astate->config->jtag_io) {
--
1.7.5.2

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