Messages in this thread | | | Date | Tue, 17 Apr 2018 10:14:49 +0300 | From | Dan Carpenter <> | Subject | Re: [PATCH 11/25] staging: lustre: libcfs: invert error handling for cfs_cpt_table_print |
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On Mon, Apr 16, 2018 at 12:09:53AM -0400, James Simmons wrote: > From: Amir Shehata <amir.shehata@intel.com> > > Instead of setting rc to -EFBIG for several cases in the loop lets > initialize rc to -EFBIG and just break out of the loop in case of > failure. Just set rc to zero once we successfully finish the loop. > > Signed-off-by: Amir Shehata <amir.shehata@intel.com> > Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-7734 > Reviewed-on: http://review.whamcloud.com/18916 > Reviewed-by: Olaf Weber <olaf@sgi.com> > Reviewed-by: Doug Oucharek <dougso@me.com> > Signed-off-by: James Simmons <jsimmons@infradead.org> > --- > .../staging/lustre/lnet/libcfs/linux/linux-cpu.c | 22 ++++++++++------------ > 1 file changed, 10 insertions(+), 12 deletions(-) > > diff --git a/drivers/staging/lustre/lnet/libcfs/linux/linux-cpu.c b/drivers/staging/lustre/lnet/libcfs/linux/linux-cpu.c > index bbf89b8..6d8dcd3 100644 > --- a/drivers/staging/lustre/lnet/libcfs/linux/linux-cpu.c > +++ b/drivers/staging/lustre/lnet/libcfs/linux/linux-cpu.c > @@ -158,29 +158,26 @@ struct cfs_cpt_table * > cfs_cpt_table_print(struct cfs_cpt_table *cptab, char *buf, int len) > { > char *tmp = buf; > - int rc = 0; > + int rc = -EFBIG; > int i; > int j; > > for (i = 0; i < cptab->ctb_nparts; i++) { > - if (len > 0) { > - rc = snprintf(tmp, len, "%d\t:", i); > - len -= rc; > - } > + if (len <= 0) > + goto out; > + > + rc = snprintf(tmp, len, "%d\t:", i); > + len -= rc; > > - if (len <= 0) { > - rc = -EFBIG; > + if (len <= 0) > goto out;
This patch says it's a cleanup but the only thing it does is introduce "forgot to set the error" bugs.
regards, dan carpenter
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