[PATCH 3/4] staging: gasket: core: add subsystem and device info to logs

[Todd Poynor]

From: Todd Poynor <toddpoy...@google.com>

Identify gasket as the subsystem printing various messages.
Add the driver name to appropriate messages to indicate which driver
has a problem.

Signed-off-by: Todd Poynor <toddpoy...@google.com>
---
 drivers/staging/gasket/gasket_core.c | 13 +++++++++----
 1 file changed, 9 insertions(+), 4 deletions(-)

diff --git a/drivers/staging/gasket/gasket_core.c 
b/drivers/staging/gasket/gasket_core.c
index 91db71c238804..93a4d9f08eaab 100644
--- a/drivers/staging/gasket/gasket_core.c
+++ b/drivers/staging/gasket/gasket_core.c
@@ -6,6 +6,9 @@
  *
  * Copyright (C) 2018 Google, Inc.
  */
+
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
 #include "gasket_core.h"
 
 #include "gasket_interrupt.h"
@@ -208,7 +211,7 @@ static int gasket_alloc_dev(struct gasket_internal_desc 
*internal_desc,
 
        gasket_dev = *pdev = kzalloc(sizeof(*gasket_dev), GFP_KERNEL);
        if (!gasket_dev) {
-               pr_err("no memory for device\n");
+               pr_err("no memory for device %s\n", kobj_name);
                return -ENOMEM;
        }
        internal_desc->devs[dev_idx] = gasket_dev;
@@ -1760,7 +1763,7 @@ int gasket_register_device(const struct 
gasket_driver_desc *driver_desc)
        mutex_unlock(&g_mutex);
 
        if (desc_idx == -1) {
-               pr_err("Too many Gasket drivers loaded: %d\n",
+               pr_err("too many drivers loaded, max %d\n",
                       GASKET_FRAMEWORK_DESC_MAX);
                return -EBUSY;
        }
@@ -1790,7 +1793,8 @@ int gasket_register_device(const struct 
gasket_driver_desc *driver_desc)
        ret = __pci_register_driver(&internal->pci, driver_desc->module,
                                    driver_desc->name);
        if (ret) {
-               pr_err("cannot register pci driver [ret=%d]\n", ret);
+               pr_err("cannot register %s pci driver [ret=%d]\n",
+                      driver_desc->name, ret);
                goto fail1;
        }
 
@@ -1798,7 +1802,8 @@ int gasket_register_device(const struct 
gasket_driver_desc *driver_desc)
                                           driver_desc->minor), GASKET_DEV_MAX,
                                     driver_desc->name);
        if (ret) {
-               pr_err("cannot register char driver [ret=%d]\n", ret);
+               pr_err("cannot register %s char driver [ret=%d]\n",
+                      driver_desc->name, ret);
                goto fail2;
        }
 
-- 
2.18.0.597.ga71716f1ad-goog

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