1 files changed, 9 insertions, 2 deletions

diff --git a/drivers/mmc/host/rtsx_pci_sdmmc.c b/drivers/mmc/host/rtsx_pci_sdmmc.c
index b435806dd9f3..1d3d6c4bfdc6 100644
--- a/drivers/mmc/host/rtsx_pci_sdmmc.c
+++ b/drivers/mmc/host/rtsx_pci_sdmmc.c
@@ -54,9 +54,9 @@ struct realtek_pci_sdmmc {
 #define SDMMC_POWER_ON          1
 #define SDMMC_POWER_OFF         0
 
-        unsigned int            sg_count;
+        int                     sg_count;
         s32                     cookie;
-        unsigned int            cookie_sg_count;
+        int                     cookie_sg_count;
         bool                    using_cookie;
 };
 
@@ -557,6 +557,13 @@ static int sd_rw_multi(struct realtek_pci_sdmmc *host, struct mmc_request *mrq)
 {
         struct mmc_data *data = mrq->data;
 
+        if (host->sg_count < 0) {
+                data->error = host->sg_count;
+                dev_dbg(sdmmc_dev(host), "%s: sg_count = %d is invalid\n",
+                        __func__, host->sg_count);
+                return data->error;
+        }
+
         if (data->flags & MMC_DATA_READ)
                 return sd_read_long_data(host, mrq);