* [PATCH] x86/platform/olpc: Fix the error handling of memblock_alloc failure
@ 2020-01-21 23:28 Aditya Pakki
2020-01-22 7:42 ` Lubomir Rintel
0 siblings, 1 reply; 2+ messages in thread
From: Aditya Pakki @ 2020-01-21 23:28 UTC (permalink / raw)
To: pakki001
Cc: kjlu, Darren Hart, Andy Shevchenko, Thomas Gleixner, Ingo Molnar,
Borislav Petkov, H. Peter Anvin, x86, Juergen Gross,
Andrew Morton, Heiko Carstens, Geert Uytterhoeven, Mike Rapoport,
Lubomir Rintel, Sebastian Reichel, Allison Randal,
platform-driver-x86, linux-kernel
In case of an error in memblock_alloc, the code calls both panic and
BUG_ON. Revert the error handling to BUG_ON.
Fixes: 8a7f97b902f4 (add checks for the return value of memblock_alloc*())
Signed-off-by: Aditya Pakki <pakki001@umn.edu>
---
arch/x86/platform/olpc/olpc_dt.c | 3 ---
1 file changed, 3 deletions(-)
diff --git a/arch/x86/platform/olpc/olpc_dt.c b/arch/x86/platform/olpc/olpc_dt.c
index 26d1f6693789..92d5ce1232ab 100644
--- a/arch/x86/platform/olpc/olpc_dt.c
+++ b/arch/x86/platform/olpc/olpc_dt.c
@@ -137,9 +137,6 @@ void * __init prom_early_alloc(unsigned long size)
* wasted bootmem) and hand off chunks of it to callers.
*/
res = memblock_alloc(chunk_size, SMP_CACHE_BYTES);
- if (!res)
- panic("%s: Failed to allocate %zu bytes\n", __func__,
- chunk_size);
BUG_ON(!res);
prom_early_allocated += chunk_size;
memset(res, 0, chunk_size);
--
2.20.1
^ permalink raw reply related [flat|nested] 2+ messages in thread* Re: [PATCH] x86/platform/olpc: Fix the error handling of memblock_alloc failure
2020-01-21 23:28 [PATCH] x86/platform/olpc: Fix the error handling of memblock_alloc failure Aditya Pakki
@ 2020-01-22 7:42 ` Lubomir Rintel
0 siblings, 0 replies; 2+ messages in thread
From: Lubomir Rintel @ 2020-01-22 7:42 UTC (permalink / raw)
To: Aditya Pakki
Cc: kjlu, Darren Hart, Andy Shevchenko, Thomas Gleixner, Ingo Molnar,
Borislav Petkov, H. Peter Anvin, x86, Juergen Gross,
Andrew Morton, Heiko Carstens, Geert Uytterhoeven, Mike Rapoport,
Sebastian Reichel, Allison Randal, platform-driver-x86,
linux-kernel
On Tue, Jan 21, 2020 at 05:28:16PM -0600, Aditya Pakki wrote:
> In case of an error in memblock_alloc, the code calls both panic and
> BUG_ON. Revert the error handling to BUG_ON.
>
> Fixes: 8a7f97b902f4 (add checks for the return value of memblock_alloc*())
> Signed-off-by: Aditya Pakki <pakki001@umn.edu>
Reviewed-by: Lubomir Rintel <lkundrak@v3.sk>
Thank you
Lubo
> ---
> arch/x86/platform/olpc/olpc_dt.c | 3 ---
> 1 file changed, 3 deletions(-)
>
> diff --git a/arch/x86/platform/olpc/olpc_dt.c b/arch/x86/platform/olpc/olpc_dt.c
> index 26d1f6693789..92d5ce1232ab 100644
> --- a/arch/x86/platform/olpc/olpc_dt.c
> +++ b/arch/x86/platform/olpc/olpc_dt.c
> @@ -137,9 +137,6 @@ void * __init prom_early_alloc(unsigned long size)
> * wasted bootmem) and hand off chunks of it to callers.
> */
> res = memblock_alloc(chunk_size, SMP_CACHE_BYTES);
> - if (!res)
> - panic("%s: Failed to allocate %zu bytes\n", __func__,
> - chunk_size);
> BUG_ON(!res);
> prom_early_allocated += chunk_size;
> memset(res, 0, chunk_size);
> --
> 2.20.1
>
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2020-01-22 7:42 ` Lubomir Rintel
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