[PATCH] soc: fsl: qe: Check of ioremap return value in qe_reset
From: Li Qiong <hidden>
Date: 2022-06-11 11:50:48
Also in:
linux-arm-kernel, lkml
Subsystem:
freescale quicc engine library, freescale soc drivers, the rest · Maintainers:
Qiang Zhao, Christophe Leroy, Linus Torvalds
As the possible failure of the ioremap(), the qe_immr could be NULL. Therefore it should be better to check it and print error message. Signed-off-by: Li Qiong <redacted> --- drivers/soc/fsl/qe/qe.c | 5 +++++ 1 file changed, 5 insertions(+)
diff --git a/drivers/soc/fsl/qe/qe.c b/drivers/soc/fsl/qe/qe.c
index b3c226eb5292..3c0948c2440e 100644
--- a/drivers/soc/fsl/qe/qe.c
+++ b/drivers/soc/fsl/qe/qe.c@@ -88,6 +88,11 @@ void qe_reset(void) if (qe_immr == NULL) qe_immr = ioremap(get_qe_base(), QE_IMMAP_SIZE); + if (!qe_immr) { + pr_err("%s: failed to ioremap()\n", __func__); + return; + } + qe_snums_init(); qe_issue_cmd(QE_RESET, QE_CR_SUBBLOCK_INVALID,
--
2.11.0