On 27 October 2017 at 21:31, SF Markus Elfring
<elfring@xxxxxxxxxxxxxxxxxxxxx> wrote:
> From: Markus Elfring <elfring@xxxxxxxxxxxxxxxxxxxxx>
> Date: Fri, 27 Oct 2017 21:21:40 +0200
>
> Add a jump target so that a specific string copy operation is stored
> only once at the end of this function implementation.
> Replace two calls of the function "strncpy" by goto statements.
>
> This issue was detected by using the Coccinelle software.
>
> Signed-off-by: Markus Elfring <elfring@xxxxxxxxxxxxxxxxxxxxx>
Thanks, applied for next!
Kind regards
Uffe
> ---
> drivers/mmc/host/vub300.c | 22 ++++++++++------------
> 1 file changed, 10 insertions(+), 12 deletions(-)
>
> diff --git a/drivers/mmc/host/vub300.c b/drivers/mmc/host/vub300.c
> index c1a169843f99..c898a45a84c5 100644
> --- a/drivers/mmc/host/vub300.c
> +++ b/drivers/mmc/host/vub300.c
> @@ -1244,12 +1244,8 @@ static void __download_offload_pseudocode(struct vub300_mmc_host *vub300,
> USB_RECIP_DEVICE, 0x0000, 0x0000,
> xfer_buffer, xfer_length, HZ);
> kfree(xfer_buffer);
> - if (retval < 0) {
> - strncpy(vub300->vub_name,
> - "SDIO pseudocode download failed",
> - sizeof(vub300->vub_name));
> - return;
> - }
> + if (retval < 0)
> + goto copy_error_message;
> } else {
> dev_err(&vub300->udev->dev,
> "not enough memory for xfer buffer to send"
> @@ -1291,12 +1287,8 @@ static void __download_offload_pseudocode(struct vub300_mmc_host *vub300,
> USB_RECIP_DEVICE, 0x0000, 0x0000,
> xfer_buffer, xfer_length, HZ);
> kfree(xfer_buffer);
> - if (retval < 0) {
> - strncpy(vub300->vub_name,
> - "SDIO pseudocode download failed",
> - sizeof(vub300->vub_name));
> - return;
> - }
> + if (retval < 0)
> + goto copy_error_message;
> } else {
> dev_err(&vub300->udev->dev,
> "not enough memory for xfer buffer to send"
> @@ -1349,6 +1341,12 @@ static void __download_offload_pseudocode(struct vub300_mmc_host *vub300,
> sizeof(vub300->vub_name));
> return;
> }
> +
> + return;
> +
> +copy_error_message:
> + strncpy(vub300->vub_name, "SDIO pseudocode download failed",
> + sizeof(vub300->vub_name));
> }
>
> /*
> --
> 2.14.3
>
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