media: dvb: symbol fixup for dvb_attach()

In commit 9011e49 ("modules: only allow symbol_get of
EXPORT_SYMBOL_GPL modules") the use of symbol_get is properly restricted
to GPL-only marked symbols.  This interacts oddly with the DVB logic
which only uses dvb_attach() to load the dvb driver which then uses
symbol_get().

Fix this up by properly marking all of the dvb_attach attach symbols as
EXPORT_SYMBOL_GPL().

Fixes: 9011e49 ("modules: only allow symbol_get of EXPORT_SYMBOL_GPL modules")
Cc: stable <stable@kernel.org>
Reported-by: Stefan Lippers-Hollmann <s.l-h@gmx.de>
Cc: Mauro Carvalho Chehab <mchehab@kernel.org>
Cc: Christoph Hellwig <hch@lst.de>
Cc: linux-media@vger.kernel.org
Cc: linux-modules@vger.kernel.org
Acked-by: Luis Chamberlain <mcgrof@kernel.org>
Acked-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Link: https://lore.kernel.org/r/20230908092035.3815268-2-gregkh@linuxfoundation.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Author: gregkh

drivers/media/dvb-frontends/ascot2e.c

@@ -533,7 +533,7 @@ struct dvb_frontend *ascot2e_attach(struct dvb_frontend *fe,
 		priv->i2c_address, priv->i2c);
 	return fe;
 }
-EXPORT_SYMBOL(ascot2e_attach);
+EXPORT_SYMBOL_GPL(ascot2e_attach);
 
 MODULE_DESCRIPTION("Sony ASCOT2E terr/cab tuner driver");
 MODULE_AUTHOR("info@netup.ru");

drivers/media/dvb-frontends/atbm8830.c

@@ -489,7 +489,7 @@ struct dvb_frontend *atbm8830_attach(const struct atbm8830_config *config,
 	return NULL;
 
 }
-EXPORT_SYMBOL(atbm8830_attach);
+EXPORT_SYMBOL_GPL(atbm8830_attach);
 
 MODULE_DESCRIPTION("AltoBeam ATBM8830/8831 GB20600 demodulator driver");
 MODULE_AUTHOR("David T. L. Wong <davidtlwong@gmail.com>");

drivers/media/dvb-frontends/au8522_dig.c

@@ -879,7 +879,7 @@ struct dvb_frontend *au8522_attach(const struct au8522_config *config,
 	au8522_release_state(state);
 	return NULL;
 }
-EXPORT_SYMBOL(au8522_attach);
+EXPORT_SYMBOL_GPL(au8522_attach);
 
 static const struct dvb_frontend_ops au8522_ops = {
 	.delsys = { SYS_ATSC, SYS_DVBC_ANNEX_B },

drivers/media/dvb-frontends/bcm3510.c

@@ -835,7 +835,7 @@ struct dvb_frontend* bcm3510_attach(const struct bcm3510_config *config,
 	kfree(state);
 	return NULL;
 }
-EXPORT_SYMBOL(bcm3510_attach);
+EXPORT_SYMBOL_GPL(bcm3510_attach);
 
 static const struct dvb_frontend_ops bcm3510_ops = {
 	.delsys = { SYS_ATSC, SYS_DVBC_ANNEX_B },

drivers/media/dvb-frontends/cx22700.c

@@ -432,4 +432,4 @@ MODULE_DESCRIPTION("Conexant CX22700 DVB-T Demodulator driver");
 MODULE_AUTHOR("Holger Waechtler");
 MODULE_LICENSE("GPL");
 
-EXPORT_SYMBOL(cx22700_attach);
+EXPORT_SYMBOL_GPL(cx22700_attach);

drivers/media/dvb-frontends/cx22702.c

@@ -604,7 +604,7 @@ struct dvb_frontend *cx22702_attach(const struct cx22702_config *config,
 	kfree(state);
 	return NULL;
 }
-EXPORT_SYMBOL(cx22702_attach);
+EXPORT_SYMBOL_GPL(cx22702_attach);
 
 static const struct dvb_frontend_ops cx22702_ops = {
 	.delsys = { SYS_DVBT },

drivers/media/dvb-frontends/cx24110.c

@@ -653,4 +653,4 @@ MODULE_DESCRIPTION("Conexant CX24110 DVB-S Demodulator driver");
 MODULE_AUTHOR("Peter Hettkamp");
 MODULE_LICENSE("GPL");
 
-EXPORT_SYMBOL(cx24110_attach);
+EXPORT_SYMBOL_GPL(cx24110_attach);

drivers/media/dvb-frontends/cx24113.c

@@ -590,7 +590,7 @@ struct dvb_frontend *cx24113_attach(struct dvb_frontend *fe,
 
 	return NULL;
 }
-EXPORT_SYMBOL(cx24113_attach);
+EXPORT_SYMBOL_GPL(cx24113_attach);
 
 module_param(debug, int, 0644);
 MODULE_PARM_DESC(debug, "Activates frontend debugging (default:0)");

drivers/media/dvb-frontends/cx24116.c

@@ -1133,7 +1133,7 @@ struct dvb_frontend *cx24116_attach(const struct cx24116_config *config,
 	state->frontend.demodulator_priv = state;
 	return &state->frontend;
 }
-EXPORT_SYMBOL(cx24116_attach);
+EXPORT_SYMBOL_GPL(cx24116_attach);
 
 /*
  * Initialise or wake up device

drivers/media/dvb-frontends/cx24120.c

@@ -305,7 +305,7 @@ struct dvb_frontend *cx24120_attach(const struct cx24120_config *config,
 	kfree(state);
 	return NULL;
 }
-EXPORT_SYMBOL(cx24120_attach);
+EXPORT_SYMBOL_GPL(cx24120_attach);
 
 static int cx24120_test_rom(struct cx24120_state *state)
 {