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Subject[PATCH v2] mmc: core: Delete an error message for a failed memory allocation in four functions
From
Date
From: Markus Elfring <elfring@users.sourceforge.net>
Date: Fri, 19 May 2017 13:15:27 +0200

Omit an extra message for a memory allocation failure in these functions.

This issue was detected by using the Coccinelle software.

Link: http://events.linuxfoundation.org/sites/events/files/slides/LCJ16-Refactor_Strings-WSang_0.pdf
Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
---

v2:
This refactoring superseded the update suggestion "mmc: core: Delete
an error message for a failed memory allocation in three functions"
from 2017-05-13 because another adjustment was requested by Ulf Hansson.
https://patchwork.kernel.org/patch/9725233/
https://lkml.org/lkml/2017/5/19/308

drivers/mmc/core/mmc_test.c | 2 --
drivers/mmc/core/sd.c | 16 +++-------------
2 files changed, 3 insertions(+), 15 deletions(-)

diff --git a/drivers/mmc/core/mmc_test.c b/drivers/mmc/core/mmc_test.c
index fd1b4b8510b9..7a304a6e5bf1 100644
--- a/drivers/mmc/core/mmc_test.c
+++ b/drivers/mmc/core/mmc_test.c
@@ -3220,8 +3220,6 @@ static int __mmc_test_register_dbgfs_file(struct mmc_card *card,
df = kmalloc(sizeof(*df), GFP_KERNEL);
if (!df) {
debugfs_remove(file);
- dev_err(&card->dev,
- "Can't allocate memory for internal usage.\n");
return -ENOMEM;
}

diff --git a/drivers/mmc/core/sd.c b/drivers/mmc/core/sd.c
index d109634fbfce..1d7542daecbe 100644
--- a/drivers/mmc/core/sd.c
+++ b/drivers/mmc/core/sd.c
@@ -294,12 +294,8 @@ static int mmc_read_switch(struct mmc_card *card)
err = -EIO;

status = kmalloc(64, GFP_KERNEL);
- if (!status) {
- pr_err("%s: could not allocate a buffer for "
- "switch capabilities.\n",
- mmc_hostname(card->host));
+ if (!status)
return -ENOMEM;
- }

/*
* Find out the card's support bits with a mode 0 operation.
@@ -359,11 +355,8 @@ int mmc_sd_switch_hs(struct mmc_card *card)
return 0;

status = kmalloc(64, GFP_KERNEL);
- if (!status) {
- pr_err("%s: could not allocate a buffer for "
- "switch capabilities.\n", mmc_hostname(card->host));
+ if (!status)
return -ENOMEM;
- }

err = mmc_sd_switch(card, 1, 0, 1, status);
if (err)
@@ -596,11 +589,8 @@ static int mmc_sd_init_uhs_card(struct mmc_card *card)
return 0;

status = kmalloc(64, GFP_KERNEL);
- if (!status) {
- pr_err("%s: could not allocate a buffer for "
- "switch capabilities.\n", mmc_hostname(card->host));
+ if (!status)
return -ENOMEM;
- }

/* Set 4-bit bus width */
if ((card->host->caps & MMC_CAP_4_BIT_DATA) &&
--
2.13.0
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