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Bug#59585 Fix 58912 introduces compiler warning

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due to potentially uninitialized variable

row_upd_changes_ord_field_binary(): Initialize dfield_len to suppress the
warning. The compiler cannot know that row_ext_lookup() does initialize
dfield_len for us, as it is defined in a different module.
This commit is contained in:
Marko Mäkelä 2011-01-25 15:43:08 +02:00
parent a1e4785a83
commit 5f20aa2b4f
2 changed files with 10 additions and 0 deletions
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6
storage/innodb_plugin/ChangeLog
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@ -1,3 +1,9 @@
2011-01-25 The InnoDB Team
* row/row0upd.c:
Bug#59585 Fix 58912 introduces compiler warning
due to potentially uninitialized variable
2011-01-25 The InnoDB Team
* mtr/mtr0log.c:

4
storage/innodb_plugin/row/row0upd.c
View file

@ -1252,6 +1252,10 @@ row_upd_changes_ord_field_binary(
|| dfield_is_null(dfield)) {
/* do nothing special */
} else if (UNIV_LIKELY_NULL(ext)) {
/* Silence a compiler warning without
silencing a Valgrind error. */
dfield_len = 0;
UNIV_MEM_INVALID(&dfield_len, sizeof dfield_len);
/* See if the column is stored externally. */
buf = row_ext_lookup(ext, col_no, &dfield_len);