From mboxrd@z Thu Jan 1 00:00:00 1970 From: Octavian Purdila Subject: [PATCH v2 1/4] mfd: dln2: fix _dln2_transfer return code Date: Tue, 18 Nov 2014 14:57:57 +0200 Message-ID: <1416315480-2053-2-git-send-email-octavian.purdila@intel.com> References: <1416315480-2053-1-git-send-email-octavian.purdila@intel.com> Return-path: In-Reply-To: <1416315480-2053-1-git-send-email-octavian.purdila@intel.com> Sender: linux-kernel-owner@vger.kernel.org To: lee.jones@linaro.org Cc: wsa@the-dreams.de, julia.lawall@lip6.fr, dan.carpenter@oracle.com, johan@kernel.org, linux-i2c@vger.kernel.org, linux-kernel@vger.kernel.org, Octavian Purdila List-Id: linux-i2c@vger.kernel.org If wait_for_completion_interruptible_timeout returns a positive value it may be propagated as the return value of _dln2_transfer. This contradicts the documentation of the function and exposes unnecessary internals to the callers. This patch makes sure to set the return value to 0 in that case. Reported-by: Julia Lawall Signed-off-by: Octavian Purdila --- drivers/mfd/dln2.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/drivers/mfd/dln2.c b/drivers/mfd/dln2.c index 9765a17..cf22841 100644 --- a/drivers/mfd/dln2.c +++ b/drivers/mfd/dln2.c @@ -462,6 +462,8 @@ static int _dln2_transfer(struct dln2_dev *dln2, u16 handle, u16 cmd, if (!ret) ret = -ETIMEDOUT; goto out_free_rx_slot; + } else { + ret = 0; } if (dln2->disconnect) { @@ -484,10 +486,8 @@ static int _dln2_transfer(struct dln2_dev *dln2, u16 handle, u16 cmd, goto out_free_rx_slot; } - if (!ibuf) { - ret = 0; + if (!ibuf) goto out_free_rx_slot; - } if (*ibuf_len > rsp->hdr.size - sizeof(*rsp)) *ibuf_len = rsp->hdr.size - sizeof(*rsp); -- 1.9.1