Upgrade to 4.4.50-rt62

[kvmfornfv.git] / kernel / drivers / scsi / scsi_devinfo.c

diff --git a/kernel/drivers/scsi/scsi_devinfo.c b/kernel/drivers/scsi/scsi_devinfo.c
index da2e068..11cdb17 100644 (file)
--- a/kernel/drivers/scsi/scsi_devinfo.c
+++ b/kernel/drivers/scsi/scsi_devinfo.c
@@ -227,6 +227,7 @@ static struct {
        {"PIONEER", "CD-ROM DRM-624X", NULL, BLIST_FORCELUN | BLIST_SINGLELUN},
        {"Promise", "VTrak E610f", NULL, BLIST_SPARSELUN | BLIST_NO_RSOC},
        {"Promise", "", NULL, BLIST_SPARSELUN},
+       {"QEMU", "QEMU CD-ROM", NULL, BLIST_SKIP_VPD_PAGES},
        {"QNAP", "iSCSI Storage", NULL, BLIST_MAX_1024},
        {"SYNOLOGY", "iSCSI Storage", NULL, BLIST_MAX_1024},
        {"QUANTUM", "XP34301", "1071", BLIST_NOTQ},
@@ -425,7 +426,7 @@ static struct scsi_dev_info_list *scsi_dev_info_list_find(const char *vendor,
         * here, and we don't know what device it is
         * trying to work with, leave it as-is.
         */
-       vmax = 8;       /* max length of vendor */
+       vmax = sizeof(devinfo->vendor);
        vskip = vendor;
        while (vmax > 0 && *vskip == ' ') {
                vmax--;
@@ -435,7 +436,7 @@ static struct scsi_dev_info_list *scsi_dev_info_list_find(const char *vendor,
        while (vmax > 0 && vskip[vmax - 1] == ' ')
                --vmax;
 
-       mmax = 16;      /* max length of model */
+       mmax = sizeof(devinfo->model);
        mskip = model;
        while (mmax > 0 && *mskip == ' ') {
                mmax--;
@@ -451,10 +452,12 @@ static struct scsi_dev_info_list *scsi_dev_info_list_find(const char *vendor,
                         * Behave like the older version of get_device_flags.
                         */
                        if (memcmp(devinfo->vendor, vskip, vmax) ||
-                                       devinfo->vendor[vmax])
+                                       (vmax < sizeof(devinfo->vendor) &&
+                                               devinfo->vendor[vmax]))
                                continue;
                        if (memcmp(devinfo->model, mskip, mmax) ||
-                                       devinfo->model[mmax])
+                                       (mmax < sizeof(devinfo->model) &&
+                                               devinfo->model[mmax]))
                                continue;
                        return devinfo;
                } else {