From: Thorsten Blum <blum@kernel.org>
To: Olivia Mackall <olivia@selenic.com>,
Herbert Xu <herbert@gondor.apana.org.au>,
Kees Cook <kees@kernel.org>, Michael Buesch <mb@bu3sch.de>,
Andrew Morton <akpm@osdl.org>, Jan Beulich <jbeulich@novell.com>,
Greg Kroah-Hartman <gregkh@suse.de>,
Chris Wright <chrisw@sous-sol.org>
Cc: Thorsten Blum <blum@kernel.org>,
linux-crypto@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: [PATCH 1/2] hwrng: intel - return -ENOMEM when ioremap() fails
Date: Tue, 22 Sep 2026 20:11:01 +0200 [thread overview]
Message-ID: <20260922181102.67309-3-blum@kernel.org> (raw)
intel_init_hw_struct() incorrectly returns -EBUSY when ioremap() fails.
Return -ENOMEM instead.
Fixes: 641dd002d207 ("[PATCH] fix Intel RNG detection")
Signed-off-by: Thorsten Blum <blum@kernel.org>
---
drivers/char/hw_random/intel-rng.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/char/hw_random/intel-rng.c b/drivers/char/hw_random/intel-rng.c
index d24e747203c1..a4dd21a9de98 100644
--- a/drivers/char/hw_random/intel-rng.c
+++ b/drivers/char/hw_random/intel-rng.c
@@ -318,8 +318,8 @@ PFX "RNG, try using the 'no_fwh_detect' option.\n";
}
intel_rng_hw->mem = ioremap(INTEL_FWH_ADDR, INTEL_FWH_ADDR_LEN);
- if (intel_rng_hw->mem == NULL)
- return -EBUSY;
+ if (!intel_rng_hw->mem)
+ return -ENOMEM;
return 0;
}
next reply other threads:[~2026-09-22 18:11 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-09-22 18:11 Thorsten Blum [this message]
2026-09-22 18:11 ` [PATCH 2/2] hwrng: intel - return -ENOMEM when kmalloc_obj() fails Thorsten Blum
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