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fpga: stratix10-soc: Fix return value check in s10_ops_write_init()

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commit 65ea840afd508194b0ee903256162aa87e46ec30 upstream.

In case of error, the function stratix10_svc_allocate_memory()
returns ERR_PTR() and never returns NULL. The NULL test in the
return value check should be replaced with IS_ERR().

Fixes: e7eef1d763 ("fpga: add intel stratix10 soc fpga manager driver")
Signed-off-by: Zheng Yongjun <zhengyongjun3@huawei.com>
Reviewed-by: Russ Weight <russell.h.weight@intel.com>
Cc: stable@vger.kernel.org
Acked-by: Xu Yilun <yilun.xu@intel.com>
Link: https://lore.kernel.org/r/20221126071430.19540-1-zhengyongjun3@huawei.com
Signed-off-by: Xu Yilun <yilun.xu@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Zheng Yongjun 2022-11-26 07:14:30 +00:00 • committed by Greg Kroah-Hartman
commit c127bf9a95
1 changed files with 2 additions and 2 deletions
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4
drivers/fpga/stratix10-soc.c
View file

@ -218,9 +218,9 @@ static int s10_ops_write_init(struct fpga_manager *mgr,
/* Allocate buffers from the service layer's pool. */
for (i = 0; i < NUM_SVC_BUFS; i++) {
kbuf = stratix10_svc_allocate_memory(priv->chan, SVC_BUF_SIZE);
if (!kbuf) {
if (IS_ERR(kbuf)) {
s10_free_buffers(mgr);
ret = -ENOMEM;
ret = PTR_ERR(kbuf);
goto init_done;
}