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ata: pata_legacy: make legacy_exit() work again 

commit d4a89339f1 upstream.

Commit defc9cd826 ("pata_legacy: resychronize with upstream changes and
resubmit") missed to update legacy_exit(), so that it now fails to do any
cleanup -- the loop body there can never be entered.  Fix that and finally
remove now useless nr_legacy_host variable...

Found by Linux Verification Center (linuxtesting.org) with the Svace static
analysis tool.

Fixes: defc9cd826 ("pata_legacy: resychronize with upstream changes and resubmit")
Cc: stable@vger.kernel.org
Signed-off-by: Sergey Shtylyov <s.shtylyov@omp.ru>
Reviewed-by: Niklas Cassel <cassel@kernel.org>
Signed-off-by: Damien Le Moal <dlemoal@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Sergey Shtylyov 2024-05-04 23:27:25 +03:00 committed by Greg Kroah-Hartman
parent 336b8b2e90
commit 5e0d41aa53
1 changed files with 4 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
drivers/ata/pata_legacy.c
View File

@ -173,8 +173,6 @@ static int legacy_port[NR_HOST] = { 0x1f0, 0x170, 0x1e8, 0x168, 0x1e0, 0x160 };
static struct legacy_probe probe_list[NR_HOST];
static struct legacy_data legacy_data[NR_HOST];
static struct ata_host *legacy_host[NR_HOST];
static int nr_legacy_host;
/**
* legacy_probe_add - Add interface to probe list
@ -1276,9 +1274,11 @@ static __exit void legacy_exit(void)
{
int i;
for (i = 0; i < nr_legacy_host; i++) {
for (i = 0; i < NR_HOST; i++) {
struct legacy_data *ld = &legacy_data[i];
ata_host_detach(legacy_host[i]);
if (legacy_host[i])
ata_host_detach(legacy_host[i]);
platform_device_unregister(ld->platform_dev);
}
}