Am 22.03.2015 18:16, schrieb Silvan Jegen:
> Remove dead code, make goto label names more expressive and add a label
> in order to call mantis_dvb_exit if mantis_uart_init fails.
>
> Also make sure that mantis_pci_exit is called if we fail the
> mantis_stream_control call and that we call mantis_i2c_exit if
> mantis_get_mac fails.
>
> Signed-off-by: Silvan Jegen <s.jegen@xxxxxxxxx>
> ---
> V2 Changes (due to Dan Carpenter's review):
> - Remove dead code, do not activate it
> - Make goto labels more expressive
> - Add a call to mantis_dvb_exit
>
> drivers/media/pci/mantis/mantis_cards.c | 33 ++++++++++++++++-----------------
> 1 file changed, 16 insertions(+), 17 deletions(-)
>
> diff --git a/drivers/media/pci/mantis/mantis_cards.c b/drivers/media/pci/mantis/mantis_cards.c
> index 801fc55..70df61e 100644
> --- a/drivers/media/pci/mantis/mantis_cards.c
> +++ b/drivers/media/pci/mantis/mantis_cards.c
> @@ -170,7 +170,7 @@ static int mantis_pci_probe(struct pci_dev *pdev,
> if (mantis == NULL) {
> printk(KERN_ERR "%s ERROR: Out of memory\n", __func__);
> err = -ENOMEM;
> - goto fail0;
> + return err;
> }
>
> mantis->num = devs;
> @@ -183,70 +183,69 @@ static int mantis_pci_probe(struct pci_dev *pdev,
> err = mantis_pci_init(mantis);
> if (err) {
> dprintk(MANTIS_ERROR, 1, "ERROR: Mantis PCI initialization failed <%d>", err);
> - goto fail1;
> + goto err_free_mantis;
> }
>
> err = mantis_stream_control(mantis, STREAM_TO_HIF);
> if (err < 0) {
> dprintk(MANTIS_ERROR, 1, "ERROR: Mantis stream control failed <%d>", err);
> - goto fail1;
> + goto err_pci_exit;
> }
>
> err = mantis_i2c_init(mantis);
> if (err < 0) {
> dprintk(MANTIS_ERROR, 1, "ERROR: Mantis I2C initialization failed <%d>", err);
> - goto fail2;
> + goto err_pci_exit;
> }
>
> err = mantis_get_mac(mantis);
> if (err < 0) {
> dprintk(MANTIS_ERROR, 1, "ERROR: Mantis MAC address read failed <%d>", err);
> - goto fail2;
> + goto err_i2c_exit;
> }
>
> err = mantis_dma_init(mantis);
> if (err < 0) {
> dprintk(MANTIS_ERROR, 1, "ERROR: Mantis DMA initialization failed <%d>", err);
> - goto fail3;
> + goto err_i2c_exit;
> }
>
> err = mantis_dvb_init(mantis);
> if (err < 0) {
> dprintk(MANTIS_ERROR, 1, "ERROR: Mantis DVB initialization failed <%d>", err);
> - goto fail4;
> + goto err_dma_exit;
> }
> +
> err = mantis_uart_init(mantis);
> if (err < 0) {
> dprintk(MANTIS_ERROR, 1, "ERROR: Mantis UART initialization failed <%d>", err);
> - goto fail6;
> + goto err_dvb_exit;
> }
>
> devs++;
>
> return err;
>
Hi Silvan Jegen,
i found the dprintk() a bit confusing, if i understand the code correctly it will always print on error:
the dprintf found in if (err<0) like :
dprintk(MANTIS_ERROR, 1, "ERROR: Mantis DVB initialization failed <%d>", err);
and then
dprintk(MANTIS_ERROR, 1, "ERROR: Mantis DVB exit! <%d>", err);
maybe this is more a question for the maintainer, but this seems a bit useless.
re,
wh
> +err_dvb_exit:
> + dprintk(MANTIS_ERROR, 1, "ERROR: Mantis DVB exit! <%d>", err);
> + mantis_dvb_exit(mantis);
>
> - dprintk(MANTIS_ERROR, 1, "ERROR: Mantis UART exit! <%d>", err);
> - mantis_uart_exit(mantis);
> -
> -fail6:
> -fail4:
> +err_dma_exit:
> dprintk(MANTIS_ERROR, 1, "ERROR: Mantis DMA exit! <%d>", err);
> mantis_dma_exit(mantis);
>
> -fail3:
> +err_i2c_exit:
> dprintk(MANTIS_ERROR, 1, "ERROR: Mantis I2C exit! <%d>", err);
> mantis_i2c_exit(mantis);
>
> -fail2:
> +err_pci_exit:
> dprintk(MANTIS_ERROR, 1, "ERROR: Mantis PCI exit! <%d>", err);
> mantis_pci_exit(mantis);
>
> -fail1:
> +err_free_mantis:
> dprintk(MANTIS_ERROR, 1, "ERROR: Mantis free! <%d>", err);
> kfree(mantis);
>
> -fail0:
> return err;
> }
>
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