mmc: sdhci-of-arasan: Check return value of non-void funtions

At a couple of places, the return values of the non-void functions were
not getting checked. This was reported by the coverity tool. Modify the
code to check the return values of the same.

Addresses-Coverity: ("check_return")
Signed-off-by: Manish Narani <manish.narani@xilinx.com>
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
Link: https://lore.kernel.org/r/1623753837-21035-5-git-send-email-manish.narani@xilinx.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>

diff --git a/drivers/mmc/host/sdhci-of-arasan.c b/drivers/mmc/host/sdhci-of-arasan.c
index 0f6ef4f..ec49207 100644 (file)
--- a/drivers/mmc/host/sdhci-of-arasan.c
+++ b/drivers/mmc/host/sdhci-of-arasan.c
@@ -273,7 +273,12 @@ static void sdhci_arasan_set_clock(struct sdhci_host *host, unsigned int clock)
                         * through low speeds without power cycling.
                         */
                        sdhci_set_clock(host, host->max_clk);
-                       phy_power_on(sdhci_arasan->phy);
+                       if (phy_power_on(sdhci_arasan->phy)) {
+                               pr_err("%s: Cannot power on phy.\n",
+                                      mmc_hostname(host->mmc));
+                               return;
+                       }
+
                        sdhci_arasan->is_phy_on = true;
 
                        /*
@@ -323,7 +328,12 @@ static void sdhci_arasan_set_clock(struct sdhci_host *host, unsigned int clock)
                msleep(20);
 
        if (ctrl_phy) {
-               phy_power_on(sdhci_arasan->phy);
+               if (phy_power_on(sdhci_arasan->phy)) {
+                       pr_err("%s: Cannot power on phy.\n",
+                              mmc_hostname(host->mmc));
+                       return;
+               }
+
                sdhci_arasan->is_phy_on = true;
        }
 }
@@ -479,7 +489,9 @@ static int sdhci_arasan_suspend(struct device *dev)
                ret = phy_power_off(sdhci_arasan->phy);
                if (ret) {
                        dev_err(dev, "Cannot power off phy.\n");
-                       sdhci_resume_host(host);
+                       if (sdhci_resume_host(host))
+                               dev_err(dev, "Cannot resume host.\n");
+
                        return ret;
                }
                sdhci_arasan->is_phy_on = false;