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fs/proc/kcore.c: fix coccinelle reported ERROR instances

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[ Upstream commit 82e33f249f1126cf3c5f39a31b850d485ac33bc3 ]

Coccinelle complains about the nested reuse of the pointer `iter' with
different pointer type:

./fs/proc/kcore.c:515:26-30: ERROR: invalid reference to the index variable of the iterator on line 499
./fs/proc/kcore.c:534:23-27: ERROR: invalid reference to the index variable of the iterator on line 499
./fs/proc/kcore.c:550:40-44: ERROR: invalid reference to the index variable of the iterator on line 499
./fs/proc/kcore.c:568:27-31: ERROR: invalid reference to the index variable of the iterator on line 499
./fs/proc/kcore.c:581:28-32: ERROR: invalid reference to the index variable of the iterator on line 499
./fs/proc/kcore.c:599:27-31: ERROR: invalid reference to the index variable of the iterator on line 499
./fs/proc/kcore.c:607:38-42: ERROR: invalid reference to the index variable of the iterator on line 499
./fs/proc/kcore.c:614:26-30: ERROR: invalid reference to the index variable of the iterator on line 499

Replacing `struct kcore_list *iter' with `struct kcore_list *tmp' doesn't change the
scope and the functionality is the same and coccinelle seems happy.

NOTE: There was an issue with using `struct kcore_list *pos' as the nested iterator.
      The build did not work!

[akpm@linux-foundation.org: s/tmp/pos/]
Link: https://lkml.kernel.org/r/20241029054651.86356-2-mtodorovac69@gmail.com
Link: https://lore.kernel.org/all/CAHk-=wgRr_D8CB-D9Kg-c=EHreAsk5SqXPwr9Y7k9sA6cWXJ6w@mail.gmail.com/ [1]
Link: https://lkml.kernel.org/r/20220331223700.902556-1-jakobkoschel@gmail.com
Fixes: 04d168c6d4 ("fs/proc/kcore.c: remove check of list iterator against head past the loop body")
Signed-off-by: Jakob Koschel <jakobkoschel@gmail.com>
Signed-off-by: Mirsad Todorovac <mtodorovac69@gmail.com>
Cc: Mike Rapoport <rppt@kernel.org>
Cc: David Hildenbrand <david@redhat.com>
Cc: Oscar Salvador <osalvador@suse.de>
Cc: "Brian Johannesmeyer" <bjohannesmeyer@gmail.com>
Cc: Cristiano Giuffrida <c.giuffrida@vu.nl>
Cc: "Bos, H.J." <h.j.bos@vu.nl>
Cc: Alexey Dobriyan <adobriyan@gmail.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Yang Li <yang.lee@linux.alibaba.com>
Cc: Baoquan He <bhe@redhat.com>
Cc: Hari Bathini <hbathini@linux.ibm.com>
Cc: Yan Zhen <yanzhen@vivo.com>
Cc: Alexander Gordeev <agordeev@linux.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Mirsad Todorovac
2024-10-29 06:46:52 +01:00
committed by Greg Kroah-Hartman
parent 7d3b437385
commit 41f80bdd52
1 changed files with 5 additions and 5 deletions
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10
fs/proc/kcore.c
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@@ -496,13 +496,13 @@ read_kcore_iter(struct kiocb *iocb, struct iov_iter *iter)
* the previous entry, search for a matching entry. * the previous entry, search for a matching entry.
*/ */
if (!m || start < m->addr || start >= m->addr + m->size) { if (!m || start < m->addr || start >= m->addr + m->size) {
struct kcore_list *iter; struct kcore_list *pos;
m = NULL; m = NULL;
list_for_each_entry(iter, &kclist_head, list) { list_for_each_entry(pos, &kclist_head, list) {
if (start >= iter->addr && if (start >= pos->addr &&
start < iter->addr + iter->size) { start < pos->addr + pos->size) {
m = iter; m = pos;
break; break;
} }
} }