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Fix maybe uninitialized variable warning #11373

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Merged
merged 1 commit into from
Dec 20, 2020

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Motivation and Context

Resolve a recently introduce gcc warning.

Description

Commit 1c2358c restructured this code and introduced a warning
about the variable maybe not being intiailized. This cannot happen
with the updated code but we should initialize the variable anyway
to silence the warning.

zpl_file.c: In function ‘zpl_iter_write’:
zpl_file.c:324:9: warning: ‘count’ may be used uninitialized
    in this function [-Wmaybe-uninitialized]

How Has This Been Tested?

Locally compiled and verified there was no longer a warning.

Types of changes

  • Bug fix (non-breaking change which fixes an issue)
  • New feature (non-breaking change which adds functionality)
  • Performance enhancement (non-breaking change which improves efficiency)
  • Code cleanup (non-breaking change which makes code smaller or more readable)
  • Breaking change (fix or feature that would cause existing functionality to change)
  • Library ABI change (libzfs, libzfs_core, libnvpair, libuutil and libzfsbootenv)
  • Documentation (a change to man pages or other documentation)

Checklist:

Commit 1c2358c restructured this code and introduced a warning
about the variable maybe not being intiailized.  This cannot happen
with the updated code but we should initialize the variable anyway
to silence the warning.

    zpl_file.c: In function ‘zpl_iter_write’:
    zpl_file.c:324:9: warning: ‘count’ may be used uninitialized
        in this function [-Wmaybe-uninitialized]

Signed-off-by: Brian Behlendorf <[email protected]>
@behlendorf behlendorf added the Status: Code Review Needed Ready for review and testing label Dec 18, 2020
@behlendorf behlendorf added Status: Accepted Ready to integrate (reviewed, tested) and removed Status: Code Review Needed Ready for review and testing labels Dec 20, 2020
@behlendorf behlendorf merged commit 8947fa4 into openzfs:master Dec 20, 2020
behlendorf added a commit that referenced this pull request Dec 23, 2020
Commit 1c2358c restructured this code and introduced a warning
about the variable maybe not being initialized.  This cannot happen
with the updated code but we should initialize the variable anyway
to silence the warning.

    zpl_file.c: In function ‘zpl_iter_write’:
    zpl_file.c:324:9: warning: ‘count’ may be used uninitialized
        in this function [-Wmaybe-uninitialized]

Signed-off-by: Brian Behlendorf <[email protected]>
Closes #11373
jsai20 pushed a commit to jsai20/zfs that referenced this pull request Mar 30, 2021
Commit 1c2358c restructured this code and introduced a warning
about the variable maybe not being initialized.  This cannot happen
with the updated code but we should initialize the variable anyway
to silence the warning.

    zpl_file.c: In function ‘zpl_iter_write’:
    zpl_file.c:324:9: warning: ‘count’ may be used uninitialized
        in this function [-Wmaybe-uninitialized]

Signed-off-by: Brian Behlendorf <[email protected]>
Closes openzfs#11373
@behlendorf behlendorf deleted the zpl_iter_write-warn branch April 19, 2021 19:20
sempervictus pushed a commit to sempervictus/zfs that referenced this pull request May 31, 2021
Commit 1c2358c restructured this code and introduced a warning
about the variable maybe not being initialized.  This cannot happen
with the updated code but we should initialize the variable anyway
to silence the warning.

    zpl_file.c: In function ‘zpl_iter_write’:
    zpl_file.c:324:9: warning: ‘count’ may be used uninitialized
        in this function [-Wmaybe-uninitialized]

Signed-off-by: Brian Behlendorf <[email protected]>
Closes openzfs#11373
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