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From: Sudip Mukherjee <sudipm.mukherjee@gmail.com>
To: Peter Huewe <peterhuewe@gmx.de>,
	Marcel Selhorst <tpmdd@selhorst.net>,
	Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>,
	Jason Gunthorpe <jgunthorpe@obsidianresearch.com>
Cc: linux-kernel@vger.kernel.org, tpmdd-devel@lists.sourceforge.net,
	Sudip Mukherjee <sudipm.mukherjee@gmail.com>
Subject: [PATCH] tpm: use devm_add_action_or_reset
Date: Sun, 12 Jun 2016 15:05:29 +0100	[thread overview]
Message-ID: <1465740329-4699-1-git-send-email-sudipm.mukherjee@gmail.com> (raw)

If devm_add_action() fails we are explicitly calling put_device() to
free the resources allocated. Lets use the helper
devm_add_action_or_reset() and return directly in case of error, as we
know that the cleanup function has been already called by the helper if
there was any error.

Signed-off-by: Sudip Mukherjee <sudip.mukherjee@codethink.co.uk>
---
 drivers/char/tpm/tpm-chip.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/char/tpm/tpm-chip.c b/drivers/char/tpm/tpm-chip.c
index 1965dc7..5a2f043 100644
--- a/drivers/char/tpm/tpm-chip.c
+++ b/drivers/char/tpm/tpm-chip.c
@@ -213,11 +213,11 @@ struct tpm_chip *tpmm_chip_alloc(struct device *pdev,
 	if (IS_ERR(chip))
 		return chip;
 
-	rc = devm_add_action(pdev, (void (*)(void *)) put_device, &chip->dev);
-	if (rc) {
-		put_device(&chip->dev);
+	rc = devm_add_action_or_reset(pdev,
+				      (void (*)(void *)) put_device,
+				      &chip->dev);
+	if (rc)
 		return ERR_PTR(rc);
-	}
 
 	dev_set_drvdata(pdev, chip);
 
-- 
1.9.1

             reply	other threads:[~2016-06-12 14:05 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-06-12 14:05 Sudip Mukherjee [this message]
2016-06-16 20:28 ` [PATCH] tpm: use devm_add_action_or_reset Jarkko Sakkinen
2016-06-27 14:04   ` [tpmdd-devel] " Jarkko Sakkinen
  -- strict thread matches above, loose matches on Subject: below --
2016-04-25 20:46 Sudip Mukherjee
2016-04-25 20:57 ` Jason Gunthorpe
2016-04-26  8:30 ` Jarkko Sakkinen
2016-04-30 17:00   ` Sudip Mukherjee

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