[PATCH 4/8]drivers:tmp.c Fix warning: variable 'rc' set but not used

[Justin P. Mattock]

Im getting this warning when compiling:
 CC      drivers/char/tpm/tpm.o
drivers/char/tpm/tpm.c: In function 'tpm_gen_interrupt':
drivers/char/tpm/tpm.c:508:10: warning: variable 'rc' set but not used

The below patch gets rid of the warning,
but I'm not sure if it's the best solution.

 Signed-off-by: Justin P. Mattock <justinmattock at gmail.com>

---
 drivers/char/tpm/tpm.c |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)

diff --git a/drivers/char/tpm/tpm.c b/drivers/char/tpm/tpm.c
index 05ad4a1..3d685dc 100644
--- a/drivers/char/tpm/tpm.c
+++ b/drivers/char/tpm/tpm.c
@@ -514,6 +514,8 @@ void tpm_gen_interrupt(struct tpm_chip *chip)
 
 	rc = transmit_cmd(chip, &tpm_cmd, TPM_INTERNAL_RESULT_SIZE,
 			"attempting to determine the timeouts");
+	if (!rc)
+		rc = 0;
 }
 EXPORT_SYMBOL_GPL(tpm_gen_interrupt);
 
-- 
1.7.1.rc1.21.gf3bd6