[PATCH] depmod: warn on invalid devname specification

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



During the last merge window (3.12) a couple of modules gained devname
aliases, but without the necessary major and minor information. These were
then silently ignored when generating modules.devname.

Complain loudly to avoid such errors sneaking in undetected in the future:

    depmod: ERROR: Module 'zram' has devname (zram) but lacks major and minor information. Ignoring.
    depmod: ERROR: Module 'uhid' has devname (uhid) but lacks major and minor information. Ignoring.

Cc: Kay Sievers <kay@xxxxxxxx>
Cc: Lucas De Marchi <lucas.demarchi@xxxxxxxxxxxxxx>
---
 tools/depmod.c | 13 ++++++++++---
 1 file changed, 10 insertions(+), 3 deletions(-)

diff --git a/tools/depmod.c b/tools/depmod.c
index 985cf3a..5855b2a 100644
--- a/tools/depmod.c
+++ b/tools/depmod.c
@@ -2120,11 +2120,18 @@ static int output_devname(struct depmod *depmod, FILE *out)
 				minor = min;
 			}
 
-			if (type != '\0' && devname != NULL) {
+			if (type != '\0' && devname != NULL)
+				break;
+		}
+
+		if (devname != NULL) {
+			if (type != '\0')
 				fprintf(out, "%s %s %c%u:%u\n", mod->modname,
 					devname, type, major, minor);
-				break;
-			}
+			else
+				ERR("Module '%s' has devname (%s) but "
+				    "lacks major and minor information. "
+				    "Ignoring.\n", mod->modname, devname);
 		}
 	}
 
-- 
1.8.4

--
To unsubscribe from this list: send the line "unsubscribe linux-modules" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html




[Index of Archives]     [Linux USB Devel]     [Video for Linux]     [Linux Audio Users]     [Yosemite News]     [Linux Kernel]     [Linux SCSI]     [Big List of Linux Books]

  Powered by Linux