Messages in this thread Patch in this message | | | From | Julia Lawall <> | Subject | [PATCH 5/16] ufs: fix error return code | Date | Sun, 5 Apr 2015 14:06:25 +0200 |
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Return a negative error code on failure.
A simplified version of the semantic match that finds this problem is as follows: (http://coccinelle.lip6.fr/)
// <smpl> @@ identifier ret; expression e1,e2; @@ ( if (\(ret < 0\|ret != 0\)) { ... return ret; } | ret = 0 ) ... when != ret = e1 when != &ret *if(...) { ... when != ret = e2 when forall return ret; } // </smpl>
This patch also changes the subsequent dev_err call to use err rather than recomputing PTR_ERR(hba->devfreq). The format of the error value is changed from %ld to %d to reflect the type or err.
Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
--- drivers/scsi/ufs/ufshcd.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c index 2aa85e3..8b802d1 100644 --- a/drivers/scsi/ufs/ufshcd.c +++ b/drivers/scsi/ufs/ufshcd.c @@ -5506,8 +5506,9 @@ int ufshcd_init(struct ufs_hba *hba, void __iomem *mmio_base, unsigned int irq) hba->devfreq = devfreq_add_device(dev, &ufs_devfreq_profile, "simple_ondemand", NULL); if (IS_ERR(hba->devfreq)) { - dev_err(hba->dev, "Unable to register with devfreq %ld\n", - PTR_ERR(hba->devfreq)); + err = PTR_ERR(hba->devfreq); + dev_err(hba->dev, "Unable to register with devfreq %d\n", + err); goto out_remove_scsi_host; } /* Suspend devfreq until the UFS device is detected */
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